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146 results on '"Chaire Chimie des matériaux hybrides"'

51. Engineering the Optical Response of the Titanium-MIL-125 Metal–Organic Framework through Ligand Functionalization

Author

Aron Walsh, Davide Tiana, Christopher H. Hendon, Laurence Rozes, Marc Fontecave, Loïc D'Arras, Clément Sanchez, Caroline Mellot-Draznieks, Capucine Sassoye, Laboratoire de Chimie et Biologie des Métaux (LCBM - UMR 5249), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Chaire Chimie des processus biologiques, Laboratoire de Chimie des Processus Biologiques (LCPB), Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Royal Society University Research Fellowship, ERC Starting Grant, EPSRC [EP/F067496], Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Collège de France - Chaire Chimie des processus biologiques

Subjects
Models, Molecular, Optical Phenomena, Chemistry, Multidisciplinary, Molecular Conformation, Band-gaps, 02 engineering and technology, Ligands, 01 natural sciences, Biochemistry, Engineering, Colloid and Surface Chemistry, General chemistry, Titanium, Chemistry, Photocatalyst, SUBSTITUTION, Optical Processes, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, CO2 capture, Physical Sciences, SEPARATION, Metal-organic framework, 03 Chemical Sciences, 0210 nano-technology, Amino, BAND-GAPS, Stereochemistry, Band gap, PHOTOCATALYST, Phthalic Acids, Electronic structure, 010402 general chemistry, MOFS, Catalysis, Separation, AMINO, Organometallic Compounds, CO2 CAPTURE, Reduction, Group 2 organometallic chemistry, TUNABILITY, Science & Technology, Ligand, Tunability, General Chemistry, Combinatorial chemistry, 0104 chemical sciences, REDUCTION, Surface modification, Substitution, Linker
Abstract

International audience; Herein we discuss band gap modification of MIL-125, a TiO2/1,4-benzenedicarboxylate (bdc) metal-organic framework (MOF). Through a combination of synthesis and computation, we elucidated the electronic structure of MIL-125 with aminated linkers. The band gap decrease observed when the monoaminated bdc-NH2 linker was used arises from donation of the N 2p electrons to the aromatic linking unit, resulting in a red-shifted band above the valence-band edge of MIL-125. We further explored in silico MIL-125 with the diaminated linker bdc(NH2)(2) and other functional groups (-OH, -CH3, -Cl) as alternative substitutions to control the optical response. The bdc-(NH2)2 linking unit was predicted to lower the band gap of MIL-125 to 1.28 eV, and this was confirmed through the targeted synthesis of the bdc-(NH2)(2)-based MIL,-125. This study illustrates the possibility of tuning the optical response of MOFs through rational functionalization of the linking unit, and the strength of combined synthetic/computational approaches for targeting functionalized hybrid materials.

Published
2013

52. Nanocomposite hydrogels for cartilage tissue engineering: mesoporous silica nanofibers interlinked with siloxane derived polysaccharide

Author

Frédéric Rambaud, Olivier Chauvet, Nela Buchtová, Jean Le Bideau, Pierre Weiss, Clément Sanchez, Philippe Belleville, Jérôme Guicheux, Karine Valle, Gildas Rethore, Cécile Boyer, Institut des Matériaux Jean Rouxel (IMN), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Université de Nantes (UN)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'ingénierie osteo-articulaire et dentaire (LIOAD), Université de Nantes (UN)-IFR26-Institut National de la Santé et de la Recherche Médicale (INSERM), CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), This work was funded by the Re´gion Pays de la Loire within the BIOREGOS 2 project., Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Université de Nantes (UN), Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Jehan, Frederic

Subjects
Scaffold, Materials science, Siloxanes, Cell Survival, Nanofibers, Biomedical Engineering, Biophysics, Bioengineering, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Nanocomposites, Biomaterials, chemistry.chemical_compound, Polysaccharides, Materials Testing, Humans, Composite material, Porosity, Cells, Cultured, [SDV.MHEP.RSOA] Life Sciences [q-bio]/Human health and pathology/Rhumatology and musculoskeletal system, Nanocomposite, [SDV.MHEP.GEG] Life Sciences [q-bio]/Human health and pathology/Geriatry and gerontology, Tissue Engineering, Tissue Scaffolds, [SDV.MHEP.GEG]Life Sciences [q-bio]/Human health and pathology/Geriatry and gerontology, technology, industry, and agriculture, Hydrogels, Mesoporous silica, Silicon Dioxide, 021001 nanoscience & nanotechnology, [PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0104 chemical sciences, Cartilage, Cross-Linking Reagents, [SDV.MHEP.RSOA]Life Sciences [q-bio]/Human health and pathology/Rhumatology and musculoskeletal system, Chemical engineering, chemistry, Siloxane, Nanofiber, Self-healing hydrogels, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology, Hybrid material
Abstract

International audience; Injectable materials for mini-invasive surgery of cartilage are synthesized and thoroughly studied. The concept of these hybrid materials is based on providing high enough mechanical performances along with a good medium for chondrocytes proliferation. The unusual nanocomposite hydrogels presented herein are based on siloxane derived hydroxypropylmethylcellulose (Si-HPMC) interlinked with mesoporous silica nanofibers. The mandatory homogeneity of the nanocomposites is checked by fluorescent methods, which show that the silica nanofibres dispersion is realized down to nanometric scale, suggesting an efficient immobi-lization of the silica nanofibres onto the Si-HPMC scaffold. Such dispersion and immobilization are reached thanks to the chemical affinity between the hydrophilic silica nanofibers and the pendant silanolate groups of the Si-HPMC chains. Tuning the amount of nanocharges allows tuning the resulting mechanical features of these injectable biocom-patible hybrid hydrogels. hASC stem cells and SW1353 chondrocytic cells viability is checked within the nanocom-posite hydrogels up to 3 wt% of silica nanofibers.

Published
2013

53. Hybridization in Materials Science – Evolution, Current State, and Future Aspirations

Author

Clément Sanchez, Glenna L. Drisko, Matériaux Hybrides et Nanomatériaux (MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, and Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Chemistry, media_common.quotation_subject, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, Theranostics, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 0104 chemical sciences, law.invention, Inorganic Chemistry, Molecular machines, State (polity), law, Metamaterials, Organic-inorganic hybrid composites, CLARITY, Nuclear waste storage, Engineering ethics, 0210 nano-technology, Artificial photosynthesis, media_common
Abstract

International audience; We introduce this themed issue of the European Journal of Inorganic Chemistry with a short overview of hybrid inorganic–organic materials. Hybrid materials have been used in society since antiquity, in fact the creative musings regarding hybridization began in ancient mythology. Now hybrid materials are ubiquitous, and so for clarity they have been divided into different classes and subgroups. These are explained and illustrated with notable synthetic and natural examples. The second half of this overview is devoted to some speculation about the future potential of hybrid materials based on some of the most exciting areas of development, such as artificial photosynthetic leaves, metamaterials, molecular machines, theranostics, 3D printing, nuclear waste storage, and the exploration of life's extraordinary evolutionary origins.

Published
2012

54. Metal-Dependent Interplay between Crystallization and Phosphorus Diffusion during the Synthesis of Metal Phosphide Nanoparticles

Author

Sophie Carenco, Nicolas Mézailles, Ileana Florea, Cédric Boissière, Ovidiu Ersen, Clément Sanchez, Y. Hu, Laboratoire Hétéroéléments et Coordination (DCPH), École polytechnique (X)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Novel Advanced Nano-Objects (LCMCP-NANO), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Procédés (LCMCP-MHP ), and Chaire Chimie des matériaux hybrides

Subjects
Materials science, Amorphous metal, White Phosphorus, Phosphide, General Chemical Engineering, Inorganic chemistry, Nanoparticle, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, law.invention, Amorphous solid, chemistry.chemical_compound, chemistry, law, Materials Chemistry, [CHIM]Chemical Sciences, Reactivity (chemistry), Crystallization, 0210 nano-technology, Stoichiometry
Abstract

International audience; The interplay between crystallization and phosphorus diffusion in the versatile synthesis of metal phosphide nanoparticles from well-defined metal nanoparticles is studied by using a favorable "P(0)" source for mechanistic studies: white phosphorus. In this study, the reaction of Ni, Fe, Pd, and Cu nanoparticles with P 4 was quantitative even at relatively low temperatures thanks to the high reactivity of this soluble "P" source. Intermediate amorphous alloys could be identified for the first time in the case of Fe and Pd, while the quantitative character of the reaction provided a selective and controlled access to Pd 5 P 4 versus PdP 2 and Cu 3 P versus CuP 2. Morphological evolution of the nanoparticles with temperature and M/P stoichiometry was also discussed and provided new insights in the kinetics of the reaction in each case. Hollow Ni 2 P and FeP nanoparticles were finally obtained while the particularly high stability of the amorphous plain Pd 3 P nanoparticles was uncovered.

Published
2012

55. Surface-Driven Magnetotransport in Perovskite Nanocrystals

Author

Christel Laberty-Robert, Jean-Francois Dayen, Louis Donald Notemgnou Mouafo, David Portehault, Ha Le Thi N'Goc, Jose Gonzales Calbet, Almudena Torres-Pardo, Marc Drillon, Bernard Doudin, Clément Sanchez, Simon Rano, Gwenaëlle Rousse, Céline Etrillard, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Departamento de Química Inorgánica, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Chimie du solide et de l'énergie (CSE), Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU), Matériaux Hybrides et Nanomatériaux (MHN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), ANR-10-IDEX-0002,UNISTRA,Par-delà les frontières, l'Université de Strasbourg(2010), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Spintronics, Spin polarization, Magnetoresistance, Condensed matter physics, Magnetism, Mechanical Engineering, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Ferromagnetism, Nanocrystal, Mechanics of Materials, 0103 physical sciences, [CHIM]Chemical Sciences, General Materials Science, Surface layer, 010306 general physics, 0210 nano-technology, Perovskite (structure)
Abstract

International audience; Unique insights into magnetotransport in 20 nm ligand-free La0.67Sr0.33MnO3 perovskite nanocrystals of nearly perfect crystalline quality reveal a chemically altered 0.8 nm thick surface layer that triggers exceptionally large magnetoresistance at low temperature, independently of the spin polarization of the ferromagnetic core. This discovery shows how the nanoscale impacts magnetotransport in a material widely spread as electrode in hybrid spintronic devices.

Published
2016

56. Development of cell penetration vectors for addressing inhibitors of cathepsin D

Author

Sanchez, Clément, Institut des Biomolécules Max Mousseron [Pôle Chimie Balard] (IBMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Montpellier, Vincent Lisowski, and Jean-François Hernandez

Subjects
Cathepsine D, Vectorisation, Anticancer agents, Vectorization, Agents anticancéreux, [SDV.IB]Life Sciences [q-bio]/Bioengineering, Cathepsin D
Abstract

Cathepsin D (CathD) is an overexpressed lysosomal protease secreted by several solid tumors. This enzyme is involved in tumor proliferation and metastasis, which makes it a promising target for cancer therapy. There exists a potent CathD inhibitor called Pepstatin, but it presents a too poor ability to cross the plasmic membrane in order to be active. To overcome this drawback, the development of cell penetrating vectors based on the oligomerization of constrained dipeptide mimetics has been undertaken in our lab. From this work, the bioconjugate JMV4463 has been developed. This bioconjugate is made of an AMPA4 (2-(aminomethyl)phenylacetic acid) vector, the pepstatin and a hydrophilic part which increases its solubility. This bioconjugate is able to penetrate the cells and has an antiproliferative effect on different cancer cell lines. Based on this work, synthesis of new potential cell penetrating vectors, oligomers of constrained dipeptide mimetics, was performed. Their internalization ability was established as their conjugate with pepstatin. We developed analogues of AMPA scaffold and (S)-2-(3-amino-4-oxo-3,4-dihydrobenzo[b][1,4]thiazépin-5(2H)-yl)acetic acid (DBT), which showed an important internalization ability. Thus, AMPA derivatives in indole, pyrrole and cyclohexane series were prepared. Furthermore, the synthesis of AMPA analogues having different substitutions on its aromatic part was performed, such as meta- and para- AMPA, an inferior homologue or 4,5-dimethoxy-, 4,5-dihydroxy- and 4-bromo-AMPA. An analogue of DBT in the benzodiazepin series has also been studied. All the corresponding vectors were able to internalize the pepstatin into the cells. Surprisingly, none of the conjugates showed an anti-proliferative activity, indicating the essential role of the AMPA vector. A structure/activity relationships study was performed for JMV4463. The obtained results confirmed that the AMPA vector has a unique mode of action that has not been identified yet. Furthermore, it has been demonstrated that it was possible to simplify the pepstatin structure by replacing one of its statin residues by a gamma alanine, which allows decreasing the production cost. Finally, an in vivo study on a xenografted mouse model showed a high anti-tumour potential for the JMV4463 conjugate.; La Cathepsine D (CathD) est une protéase lysosomale surexprimée et sécrétée par de nombreuses tumeurs solides. Cette enzyme favorise la prolifération tumorale et le processus métastatique, faisant d’elle une cible intéressante pour la thérapie anticancéreuse. Il existe un très bon inhibiteur de la CathD, la pepstatine, mais celui-ci traverse trop difficilement la membrane cellulaire pour être actif. C’est pourquoi des vecteurs de pénétration cellulaire, basés sur l’oligomérisation de mimes contraints de dipeptide, ont été développés au laboratoire. De ce travail, un bioconjugué, le JMV4463, a été développé. Composé d’un vecteur AMPA4 (tétramère de l’acide 2-(aminométhyl)phénylacétique), de la pepstatine, et d’une partie hydrophile aidant à la solubilisation du conjugué, ce bioconjugué est capable d’entrer dans les cellules et possède une activité antiproliférative sur différentes lignées de cellules cancéreuses. Partant de ce travail, la synthèse de nouveaux vecteurs potentiels de pénétration cellulaire, oligomères de mimes contraints de dipeptide, a été réalisée. Leur capacité d’internalisation a été établie sous la forme de conjugués avec la pepstatine. Les monomères envisagés étaient des analogues des motifs AMPA et acide (S)-2-(3-amino-4-oxo-3,4-dihydrobenzo[b][1,4]thiazépin-5(2H)-yl)acétique (DBT), motif ayant également montré une importante capacité d’internalisation. Ainsi, des analogues de l’AMPA en série indole, pyrrole et cyclohexane ont été préparés. De plus, la synthèse d’analogues de l’AMPA possédant différentes substitutions a été réalisée, tels que les méta- et para-AMPA, un homologue inférieur ou les 4,5-diméthoxy-, 4,5-dihydroxy- et 4-bromo-AMPA. Un analogue en série benzodiazépine du DBT a également été étudié. Tous les vecteurs correspondants sont capables d’internaliser la pepstatine dans les cellules mais, de façon surprenante, aucun des conjugués n’a montré d’activité anti-proliférative, indiquant un rôle essentiel du vecteur AMPA4. Une étude des relations structure / activité du JMV4463 a confirmé que le vecteur AMPA4 possédait un mode d’action unique mais celui-ci n’a pu être identifié à ce jour. Dans cette étude, il a également été montré qu’il était possible de simplifier la structure de la pepstatine, en remplaçant un de ses motifs statine par un motif gamma-alanine, permettant un coût de production réduit. Enfin, une étude in vivo sur un modèle xénogreffé de souris a montré un fort potentiel anti-tumoral du conjugué JMV4463.

Published
2016

57. On the effect of gold nanoparticles loading within carbonaceous macro-mesocellular foams toward lithium-sulfur battery performances

Author

Rénal Backov, Martin Depardieu, Marc Birot, Rezan Demir-Cakan, Mathieu Morcrette, Hervé Deleuze, Clément Sanchez, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire réactivité et chimie des solides - UMR CNRS 7314 (LRCS), Université de Picardie Jules Verne (UPJV)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Gebze Teknik Üniversitesi [Gebze], Matériaux Hybrides et Nanomatériaux (MHN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Réseau sur le stockage électrochimique de l'énergie (RS2E), Université de Nantes (UN)-Aix Marseille Université (AMU)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Université de Picardie Jules Verne (UPJV)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Picardie Jules Verne (UPJV)-Institut de Chimie du CNRS (INC)-Aix Marseille Université (AMU)-Université de Pau et des Pays de l'Adour (UPPA)-Université de Nantes (UN)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)

Subjects
Battery (electricity), Materials science, Nanoparticle, Nanotechnology, Lithium–sulfur battery, 02 engineering and technology, 010402 general chemistry, HIPE, 01 natural sciences, Integrative chemistry, Specific surface area, Gold nanoparticles, [CHIM]Chemical Sciences, General Materials Science, Monolith, Porosity, geography, geography.geographical_feature_category, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Li-sulfide battery, Porous carbon, Chemical engineering, Colloidal gold, Electrode, 0210 nano-technology
Abstract

International audience; Novel carbonaceous monolith foams loaded with gold nanoparticles have been synthesized and thoroughly characterized over several length scale. Their Li-S battery electrode capabilities have been assessed and compared while varying the gold loading and subsequently the specific surface area. Their capacities expressed in either mass (mA h g−1) or volume (mA h cm−3) dimensions have shown that specific surface area and nanoparticles loading are acting in a strong partitioning mode, rather than a cooperative mode, which does not favor the use of gold nanoparticles loading as efficient incremental path toward optimizing porous carbonaceous-based Li-S battery electrodes.

Published
2016

58. Structure-Activity Relationships of JMV4463, a Vectorized Cathepsin D Inhibitor with Antiproliferative Properties: The Unique Role of the AMPA-Based Vector

Author

Marcel Garcia, Muriel Amblard, Vincent Martin, Lubomir Vezenkov, Marie Maynadier, Jean Martinez, Clément Sanchez, Jean-François Hernandez, Virginie Bellet, Nadir Bettache, Vincent Lisowski, Institut des Biomolécules Max Mousseron [Pôle Chimie Balard] (IBMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Jean le Rond d'Alembert (DALEMBERT), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre de recherche en Biologie Cellulaire (CRBM), Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1), Centre de recherche en Biologie cellulaire de Montpellier (CRBM), and Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
0301 basic medicine, Cell Survival, Molecular Conformation, Cathepsin D, Antineoplastic Agents, Context (language use), AMPA receptor, [CHIM.THER]Chemical Sciences/Medicinal Chemistry, Biology, Biochemistry, Amino Acids, Aromatic, Structure-Activity Relationship, 03 medical and health sciences, chemistry.chemical_compound, Pepstatins, Drug Discovery, Statine, Tumor Cells, Cultured, medicine, Humans, Structure–activity relationship, Protease Inhibitors, General Pharmacology, Toxicology and Pharmaceutics, ComputingMilieux_MISCELLANEOUS, Cell Proliferation, Pharmacology, Dose-Response Relationship, Drug, Cell growth, Organic Chemistry, 3. Good health, 030104 developmental biology, Mechanism of action, chemistry, Molecular Medicine, Drug Screening Assays, Antitumor, medicine.symptom, Pepstatin
Abstract

Cathepsin D (CathD) is overexpressed and secreted by several solid tumors and stimulates their growth, the mechanism of which is still not understood. In this context, the pepstatin bioconjugate JMV4463 [Ac-arg-O2 Oc-(Val)3-Sta-Ala-Sta-(AMPA)4-NH2; O2 Oc=8-amino-3,6-dioxaoctanoyl, Sta=statine, AMPA=ortho-aminomethylphenylacetyl], containing a new kind of cell-penetrating vector, was previously shown to exhibit potent antiproliferative effects in vitro and to delay the onset of tumors in vivo. In this study, we performed a structure-activity relationship analysis to evaluate the significance of the inhibitor and vector moieties of JMV4463. By modifying both statine residues of pepstatin we found that the antiproliferative activity is correlated with CathD inhibition, supporting a major role of the catalytic activity of intracellular CathD in cancer cell proliferation. Replacing the vector composed of four AMPA units with other vectors was found to abolish cytotoxicity, although all of the conjugates enabled pepstatin transport into cells. In addition, the AMPA4 vector must be localized at the C terminus of the bioconjugate. The unexpected importance of the vector structure and position for cytotoxic action suggests that AMPA4 enables pepstatin to inhibit the proteolysis of critical CathD substrates involved in cell proliferation via a unique mechanism of action.

Published
2016

59. Biocompatible polymer–metal–organic framework composite patches for cutaneous administration of cosmetic molecules

Author

Cédric Boissière, Patricia Horcajada, Clément Sanchez, Alfonso García Márquez, Christian Serre, Carmen Alvarez-Lorenzo, Hugo Lana, Denise Cunha, María J. Blanco-Prieto, Tania Hidalgo, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidad de Navarra [Pamplona] (UNAV), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energy [Madrid], and Instituto IMDEA Energía

Subjects
medicine.medical_specialty, Materials science, Bioadhesive, Composite number, Biomedical Engineering, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, medicine, [CHIM]Chemical Sciences, General Materials Science, Active ingredient, General Chemistry, General Medicine, Permeation, 021001 nanoscience & nanotechnology, Ibuprofen, 0104 chemical sciences, Surgery, Nanocarriers, Swelling, medicine.symptom, 0210 nano-technology, Ex vivo, medicine.drug, Biomedical engineering
Abstract

International audience; Despite increasing interest in metal–organic frameworks (MOFs) in the biomedical field, developing specific formulations suitable for different administration routes is still a main challenge. Here, we propose a simple, fast and bio-friendly press-molding method for the preparation of cutaneous patches based on composites made from the drug nanocarrier MIL-100(Fe) and biopolymers. The physicochemical properties of the patches (structure, hydration, bioadhesive and swelling properties), as well as their encapsulation and release capabilities (both in ex vitro and ex vivo models), were evaluated using active ingredients such as the challenging cosmetic liporeductor, caffeine, and the model analgesic and anti-inflammatory drug, ibuprofen. In particular, very high caffeine loadings were entrapped within these cutaneous devices with progressive releases under simulated cutaneous physiological conditions as a consequence of the swelling of the hydrophilic patches. Despite the absence of any cutaneous bioadhesive character, these patches provided progressive and suitable permeation of their cosmetic cargo through the skin, interestingly reaching the targeted adipose tissue. This makes these cosmetic-containing composite MOF-based patches promising candidates for new cutaneous devices in cosmetic applications.

Published
2016

60. Optical Properties of Hybrid Organic-Inorganic Materials and their Applications

Author

Beatriz Julián-López, Luís D. Carlos, Clément Sanchez, Stephane Parola, Laboratoire de Chimie - UMR5182 (LC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon)-Institut de Chimie du CNRS (INC), Universitat Jaume I, Universidade de Aveiro, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ROOM-TEMPERATURE PHOSPHORESCENCE, Nanostructure, Materials science, Explosive material, LIGHT-EMITTING-DIODES, photonics, Nanotechnology, 02 engineering and technology, COATED GOLD NANORODS, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 010402 general chemistry, FLUORESCENT SILICA NANOPARTICLES, 01 natural sciences, plasmonics, Biomaterials, Photochromism, hybrid materials, Electrochemistry, INDUCED 2ND-HARMONIC GENERATION, luminescence, SURFACE-PLASMON RESONANCE, PLATINUM(II) ACETYLIDE CHROMOPHORES, Plasmon, SILVER TRIANGULAR NANOPRISMS, [CHIM.ORGA]Chemical Sciences/Organic chemistry, business.industry, Scale (chemistry), LUMINESCENT SOLAR CONCENTRATORS, REVERSE SATURABLE ABSORPTION, [CHIM.CATA]Chemical Sciences/Catalysis, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, optics, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Nanometre, Photonics, 0210 nano-technology, Hybrid material, business
Abstract

Research on hybrid inorganic-organic materials has experienced an explosive growth since the 1980s, with the expansion of soft inorganic chemistry based processes. Indeed, mild synthetic conditions, low processing temperatures provided by “chimie douce” and the versatility of the colloidal state allow for the mixing of the organic and inorganic components at the nanometer scale in virtually any ratio to produce the so called hybrid materials. Today a high degree of control over both composition and nanostructure of these hybrids can be achieved allowing tunable structure-property relationships. This, in turn, makes it possible to tailor and fine-tune many properties (mechanical, optical, electronic, thermal, chemical…) in very broad ranges, and to design specific multifunctional systems for applications. In particular, the field of “Hybrid-Optics” has been very productive not only scientifically but also in terms of applications. Indeed, numerous optical devices based on hybrids are already in, or very close, to the market. This review describes most of the recent advances performed in this field. Emphasis will be given to luminescent, photochromic, NLO and plasmonic properties. As an outlook we show that the controlled coupling between plasmonics and luminescence is opening a land of opportunities in the field of “Hybrid-Optics”. C.S acknowledges the “Fondation du Collège de France”. S.P. is grateful to the Ecole Normale Supérieure de Lyon, the University Lyon 1 and the CNRS for support. L.D.C. acknowledges the project CICECO – Aveiro Institute of Materials (Ref. FCT UID/CTM/50011/2013), financed by national funds through the FCT/MEC and when applicable co-financed by FEDER and COMPETE under the PT2020 Partnership Agreement. B.J.L. is grateful to the PPI project from Universitat Jaume I for financial support.

Published
2016

61. Sol–gel-processed hybrid silica-PDMS layers for the optics of high-power laser flux systems

Author

F. Compoint, H. Piombini, Marc Duquennoy, Y. Montouillout, Frédéric Jenot, B. Piwakowski, Mohammadi Ouaftouh, Clément Sanchez, Ph. Belleville, Dame Fall, Laboratoire Commun de Microbiologie IRD/ISRA/UCA, Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD), CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Centrale Lille, Matériaux Hybrides et Nanomatériaux (MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC), Chaire Chimie des matériaux hybrides, Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Transduction, Propagation et Imagerie Acoustique - IEMN (TPIA - IEMN), Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520 (IEMN-DOAE), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, medicine.medical_treatment, 02 engineering and technology, Elastomer, 01 natural sciences, law.invention, 010309 optics, chemistry.chemical_compound, Optics, law, 0103 physical sciences, medicine, General Materials Science, Composite material, Reflectometry, [PHYS]Physics [physics], Nanocomposite, Excimer laser, Polydimethylsiloxane, business.industry, Mechanical Engineering, 021001 nanoscience & nanotechnology, Laser, chemistry, Mechanics of Materials, 0210 nano-technology, National Ignition Facility, business, Laser Mégajoule
Abstract

International audience; The laser-induced damage of optical components of high-power laser systems such as the National Ignition Facility (NIF) (Murray, Proc SPIE 3492:1–10, 1998) and Laser MegaJoule (LMJ) (André, Fusion Eng Des 44:43–49, 1999) can have a significant impact on the operating costs of these laser systems since optimal shaping to carry out ignition is required. Laser-induced damage (LID) of fused silica appears on the exit surface, mostly at 3ω, and tends to grow exponentially with each laser shot. This damage affects the performance of optical components and limits their lifetime. The damage is due to thermal explosions of microdefects or microabsorbers, and these explosions emit a plasma that generates shock waves introducing cracks that increase the damage. This paper, thus proposes the deposit of an elastic layer on the exit surface to mitigate the shock waves and thereby decrease the extent of the damage volume. To this end, we have developed a mendable sol–gel-processed hybrid inorganic–organic layer. The hybrid layer is a nanocomposite made of silica and polydimethylsiloxane (PDMS). Their resultant mechanical properties can be tuned by adjusting the elastomer/silica ratio and catalysis conditions. The synthesis used to create these layers was investigated with an infrared spectrometer. The optical quality of the hybrid layers was checked by UV/visible/NIR spectrophotometry and thickness uniformity were mapped via reflectometry. Young’s modulus, Poison’s ratio, and the hardness have been measured in order to characterize the mechanical properties of these layers. The surface acoustic waves technique was used to determine Young’s modulus and Poison’s ratio of an optical layer obtained by a sol–gel process. The hardness has been measured with a homemade indenter. The results of first measurements of laser damage made with an excimer laser at 351 and 353 nm demonstrated a reduction of the laser-induced damage threshold with the PDMS/silica ratio.

Published
2016

62. Selective CO 2 methanation on Ru/TiO 2 catalysts: unravelling the decisive role of the TiO 2 support crystal structure

Author

G. Patriarche, Clément Sanchez, Damien P. Debecker, Andreas Wisnet, Capucine Sassoye, Ovidiu Ersen, Simona Moldovan, Ara Kim, Institut de la matière condensée et des nanosciences / Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain = Catholic University of Louvain (UCL), Matériaux Hybrides et Nanomatériaux (MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Ludwig-Maximilians-Universität München (LMU), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Anatase, Materials science, Annealing (metallurgy), Nanoparticle, Nanotechnology, 02 engineering and technology, [CHIM.CATA]Chemical Sciences/Catalysis, 010402 general chemistry, 021001 nanoscience & nanotechnology, Epitaxy, 01 natural sciences, Catalysis, 0104 chemical sciences, X-ray photoelectron spectroscopy, Methanation, Rutile, [CHIM.CRIS]Chemical Sciences/Cristallography, 0210 nano-technology
Abstract

International audience; The catalytic hydrogenation of CO2 is a relevant strategy for mitigating CO2 emissions and its applicability relies on our ability to prepare catalysts that are highly active under mild conditions. Understanding and improving these tailored catalysts requires innovative materials synthesis routes and advanced methods of characterization. In this study, mono-dispersed 2 nm RuO2 nanoparticles were prepared as a stable colloidal suspension and deposited onto different titania supports by impregnation. Supported RuO2 nanoparticles are homogeneously dispersed at the surface of the titania supports. Then, upon annealing and reduction, metallic Ru nanoparticles are obtained, which are active in the hydrogenation of CO2 to CH4. However, depending on the crystal structure of the different TiO2 supports (anatase, rutile, and a mixture of both), the catalysts exhibited drastically diverse catalytic performances. An array of characterization tools (N2-physisorption, H2-chemisorption, HR-TEM, STEM-HAADF, 3D tomographic analysis, XRD, and XPS) was used to unravel the origin of this support effect. It appeared that catalytic behaviour was related to profound morphological changes occurring during the annealing step. In particular, advanced electron microscopy techniques allow visualisation of the consequences of RuO2 nanoparticle mobility onto titania. It is shown that RuO2 sinters heavily on anatase TiO2, but spreads and forms epitaxial layers onto rutile TiO2. On anatase, large Ru chunks are finally obtained. On rutile, the formation of a particular “rutile-TiO2/RuO2/rutile-TiO2 sandwich structure” is demonstrated. These phenomena – along with the relative thermal instability of the supports – explain why the catalysts based on the commercial P25 titania support outperform those based on pure crystalline titania. The study opens new perspectives for the design of highly active CO2 methanation catalysts.

Published
2016

63. An expeditious synthesis of early transition metal carbide nanoparticles on graphitic carbons

Author

Simona Moldovan, David Portehault, Debora Ressnig, Clément Sanchez, Patricia Beaunier, Ovidiu Ersen, Sophie Carenco, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire de Réactivité de Surface (LRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Nanomatériaux (MHN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, chemistry.chemical_element, Nanoparticle, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Catalysis, Carbide, Metal, Transition metal, Materials Chemistry, Nanocomposite, Metals and Alloys, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, visual_art, Ceramics and Composites, visual_art.visual_art_medium, 0210 nano-technology, Carbon
Abstract

International audience; An expeditious synthesis of metal carbide nanoparticles onto various carbon supports is demonstrated. The procedure is versatile and readily yields TiC, VC, Mo2C and W2C nanoparticles on different types of carbons. The reaction is initiated at room temperature and proceeds within seconds. This novel synthetic route paves the way for a large variety of metal carbide–carbon nanocomposites that may be implemented in emerging nanotechnology fields.

Published
2016

64. A multiscale study of bacterial proliferation modes within novel E. coli@Si(HIPE) hybrid macrocellular living foams

Author

Rénal Backov, Martin Depardieu, Jacques Livage, Mélanie Viaud, Axel Buguin, Clément Sanchez, Centre de Recherche Paul Pascal (CRPP), Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC), Matériaux Hybrides et Nanomatériaux (MHN), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Coalescence (physics), Materials science, Kinetics, Biomedical Engineering, Constant speed, Nanotechnology, 02 engineering and technology, General Chemistry, General Medicine, Bacterial growth, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Chemical engineering, Homogeneous, [CHIM]Chemical Sciences, General Materials Science, 0210 nano-technology, Bacterial colony
Abstract

International audience; For the first time the study at various length scales of E. coli proliferation modes within Si(HIPE) inorganic macrocellular foams is proposed. Both qualitatively and semi-quantitatively, the bacterial proliferation within the foam is not homogeneous and is directly linked to the Si(HIPE)'s macroscopic cells random distribution. When inoculated in a nutrients loaded Si(HIPE), the bacterial growth is enhanced within the Si(HIPE) matrices compared to the surrounding LB media. The bacteria growth kinetics tends to be faster and the concentration at saturation is roughly 100% times higher. In the case of a Si(HIPE) host free of nutrients, the bacterial motion is occurring as an infiltration wave, the peak of this propagation wave moving at a constant speed of 88 µm h-1 , while bacterial concentrations within the Si(HIPE) reach levels far above the ones reached with the presence of nutrients, suggesting a real synergetic relation between the bacterial colony guests and the Si(HIPE) host. When a nutrients reservoir is present at the opposite position from which bacteria were inoculated, the bacterial proliferation is associated to a coalescence process between the growing colonies that were rapidly established within the first hours. When the Si(HIPE) is fully colonized we found out a specific distance between adjacent colonies of 5 to 15 µm in good correspondence with the repartition of the wall to wall distances of the Si(HIPE)'s macroscopic cells, meaning that the bacterial repartition once the colonization occurred is optimum. These results show that Si(HIPE) foams represent outstanding candidates for strengthened bacterial proliferation without the motion restriction imposed by conventional silica gels.

Published
2016

65. One step microwave-assisted synthesis of nanocrystalline WOx–ZrO2 acid catalysts

Author

Clément Sanchez, Francisco Gonell, Beatriz Julián-López, Karine Valle, Avelino Corma, David Portehault, Matériaux Hybrides et Nanomatériaux (MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Universitat Jaume I, CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Chaire Chimie des matériaux hybrides, and Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Aqueous solution, Materials science, nanocrystalline ZrO2, Inorganic chemistry, heterogeneous catalyst, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Heterogeneous catalysis, 01 natural sciences, Catalysis, Nanocrystalline material, 0104 chemical sciences, Dehydration reaction, Chemical engineering, Hydration reaction, [CHIM]Chemical Sciences, Cubic zirconia, 0210 nano-technology, WOx-ZrO2 catalysts, zirconia, Monoclinic crystal system
Abstract

Nanocrystalline ZrO2 and WOx–ZrO2 catalysts with good control over the zirconia phase and the nature of the W species were synthesized by a microwave-assisted aqueous route. The monoclinic ZrO2 (m-ZrO2) and tetragonal ZrO2 (t-ZrOz) polymorphs were isolated through accurate control of the synthetic conditions, in acidic and basic media, respectively. The evolution of the zirconia and W species under annealing of the WOx–ZrO2 nanocomposites at 500 °C and 800 °C was studied, and the resulting materials were tested as catalysts for aldoxime dehydration and hydration of alkynes for the production of nitriles and carbonyls, respectively. In the dehydration reaction, the most active species are W(VI) in tetrahedral coordination, independently of the ZrO2 polymorph, while in the hydration reaction the zirconia phase plays a key role, as the tungsten doped t-ZrO2 appears to be the most active catalyst. F. G. is grateful to Ministerio de Educación, Cultura y Deporte for his PhD grant (AP2010-2748); B. J.-L. and F. G. thank the Spanish Government (MAT2011-27008 project) and University Jaume I (UJI, P1 1B2014-21). F. G. and A. C. thank financial support from Spanish Government-MINECO through “Severo Ochoa” (SEV 2012-0267). D. P., C. S. and K. V. would like to strongly acknowledge the Foundation du Collège de France for support and thank the French Commissariat à l'Energie Atomique et aux Energies Alternatives for financial support. SCIC from Universitat Jaume I and Servicio de Microscopía Electrónica at Universitat Politècnica de València are also acknowledged for instrumental facilities.

Published
2016

66. New route toward nanosized crystalline metal borides with tuneable stoichiometry and variable morphologies

Author

David Portehault, Guillaume Gouget, Patricia Beaunier, Clément Sanchez, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Réactivité de Surface (LRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Nanomatériaux (MHN), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Inorganic chemistry, Yttrium borides, Nanoparticle, 02 engineering and technology, Crystal structure, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, 3. Good health, law.invention, chemistry.chemical_compound, chemistry, Chemical engineering, Nanocrystal, law, [CHIM]Chemical Sciences, Nanorod, Physical and Theoretical Chemistry, Crystal habit, Crystallization, 0210 nano-technology, Stoichiometry
Abstract

Herein we highlight for the first time the ability to tune the stoichiometry of metal boride nanocrystals through nanoparticle synthesis in thermally stable inorganic molten salts. Two metal–boron systems are chosen as case studies: boron-poor nickel borides and boron-rich yttrium borides. We show that NiB, Ni4B3, Ni2B, Ni3B, and YB6 particles can be obtained as crystalline phases with good selectivity. Anisotropic crystallization is observed in two cases: the first boron-rich YB4 nanorods are reported, while boron-poor NiB nanoparticles show a peculiar crystal habit, as they are obtained as spheres with uniaxial defects related to the crystal structure. Crystallization mechanisms are proposed to account for the appearance of these two kinds of anisotropy at the nanoscale.

Published
2016

67. Improvements in photostability and sensing properties of EuVO4 nanoparticles by microwave-assisted sol–gel route for detection of H2 O2 vapors

Author

Claire-Marie Pradier, David Portehault, Chrystel Ambard, Christophe Méthivier, Clément Sanchez, Franck Pereira, Natacha Duée, CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Nanomatériaux (MHN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Réactivité de Surface (LRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Detection limit, Materials science, Quenching (fluorescence), Inorganic chemistry, Nanoparticle, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Peroxide, Photobleaching, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Biomaterials, chemistry.chemical_compound, chemistry, X-ray photoelectron spectroscopy, Materials Chemistry, Ceramics and Composites, Explosive detection, [CHIM]Chemical Sciences, 0210 nano-technology, Hydrogen peroxide
Abstract

International audience; The inorganic thin-film fluorescence probe, with the advantages of long life span and high sensitivity, has attracted much attention in explosive detection. The poor ultraviolet absorption and lack of an aromatic ring make peroxide-based explosives very hard to detect. As the signature compound of peroxide-based explosives, H 2 O 2 vapor detection became more and more important. Rare-earth doped vanadate is considered to be a suitable material for the detection of hydrogen peroxide due to the quenching of its fluorescence in the presence of hydrogen peroxide. Its only drawback lies on its poor photostability. In this work, we have developed a new synthesis to limit the photobleaching of EuVO 4-based films. We propose herein an original protocol using microwave assisted sol-gel route. The photostability of luminescent EuVO 4 has been achieved and the sensitivity has been greatly increased. The detection limit for H 2 O 2 vapor is as low as 100 parts per billion (ppb). The characterization of these nanoparticles by photoelectron spectroscopy clearly correlates their sensitivity to H 2 O 2 to the surface chemistry.

Published
2016

68. Integrative Sol-Gel Chemistry

Author

R. Backov, Clément Sanchez, Natacha Kinadjian, David Portehault, Martin Depardieu, David Levy and Marcos Zayat, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), GREENMAT-LCIS, Université de Liège, Department of Chemistry [Waterloo], University of Waterloo [Waterloo], Matériaux Hybrides et Nanomatériaux (MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, and Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, D structures, Nanotechnology, integrative sol-gel chemistry, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Sol gel chemistry, extended 2D arrays, macroscopic structures, chemical reactors, macrocellular foams, 0210 nano-technology, Curse of dimensionality
Abstract

International audience; Integrative chemistry is the link between the notions of “complexity in chemistry” and the bio-inspired integrative synthesis. This chapter relies on this vein of integrative chemistry, while dealing with sol-gel chemistry. Through the sol–gel-based integrative chemistry, it shows how it is possible to trigger materials dimensionality and beyond their functionalities when reaching enhanced applications. Thereby it selectively proposes the morphosyntheses of discrete objects, 1D materials (fibers), 2D arrays (films), and 3D macrocellular foams bearing hierarchical porosities (monoliths). The chapter discusses in detail how integrative chemistry allows fine-tuning of material shapes and dimensions while offering enhanced applications. Considering the shaping modes, it also deals with how the integrative chemistry allows positioning the chemical reactors within the geometric spaces, with specific competence appearing as a novel paradigm with regard to traditional sol-gel chemistry.

Published
2015

69. The core contribution of transmission electron microscopy to functional nanomaterials engineering

Author

David Portehault, Simona Moldovan, Marc Drillon, Ileana Florea, Philippe Belleville, Karine Valle, Lucian Roiban, Ovidiu Ersen, Laurence Rozes, Sophie Carenco, Nicolas Mézailles, Cédric Boissière, Clément Sanchez, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Hétéroéléments et Coordination (DCPH), École polytechnique (X)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Nanomatériaux (MHN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), CNRS, College de France, UPMC, Solvay, Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)

Subjects
Materials science, Electron energy loss spectroscopy, Nanoparticle, Nanotechnology, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Nanomaterials, visual_art, Nano, visual_art.visual_art_medium, General Materials Science, Ceramic, Soft matter, 0210 nano-technology, Mesoporous material, Nanoscopic scale
Abstract

International audience; Research on nanomaterials and nanostructured materials is burgeoning because their numerous and versatile applications contribute to solve societal needs in the domain of medicine, energy, environment and STICs. Optimizing their properties requires in-depth analysis of their structural, morphological and chemical features at the nanoscale. In a transmission electron microscope (TEM), combining tomography with electron energy loss spectroscopy and high-magnification imaging in high-angle annular dark-field mode provides access to all features of the same object. Today, TEM experiments in three dimensions are paramount to solve tough structural problems associated with nanoscale matter. This approach allowed a thorough morphological description of silica fibers. Moreover, quantitative analysis of the mesoporous network of binary metal oxide prepared by template-assisted spray-drying was performed, and the homogeneity of amino functionalized metal-organic frameworks was assessed. Besides, the morphology and internal structure of metal phosphide nanoparticles was deciphered, providing a milestone for understanding phase segregation at the nanoscale. By extrapolating to larger classes of materials, from soft matter to hard metals and/or ceramics, this approach allows probing small volumes and uncovering materials characteristics and properties at two or three dimensions. Altogether, this feature article aims at providing (nano) materials scientists with a representative set of examples that illustrates the capabilities of modern TEM and tomography, which can be transposed to their own research.

Published
2015

70. Development of 3D photonic crystals using sol-gel process for high power laser applications

Author

Stefan Enoch, Philippe Belleville, É. Dieudonné, Bertrand Bertussi, N. Mallejac, Clément Sanchez, F. Benoit, Karine Valle, CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CLARTE (CLARTE), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Campo, EM and Dobisz, EA and Eldada, LA, and Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Langmuir-Blodgett (LB), Materials science, Opal, business.industry, Colloidal silica, Silica, Dielectric, Self-assembly, [CHIM.MATE]Chemical Sciences/Material chemistry, Laser, Polydispersity, law.invention, Wavelength, Optics, Stack (abstract data type), law, business, Refractive index, Photonic Crystal, Photonic crystal, Sol-gel
Abstract

International audience; Three-dimensional photonic crystals (PCs) are periodic materials with a modulated refractive index on a length scale close to the light wavelength. This optical property allows the preparation of specific optical components like highly reflective mirrors. Moreover, these structured materials are known to have a high laser-induced damage threshold (LIDT) in the sub-nanosecond range compared to multi-layered dielectric mirrors. This property is obtained because only one high LIDT material (silica) is used. The second material used in the layer stack is replaced by air. In this work, we present the development of 3D PCs with narrow-sized colloidal silica particles, prepared by sol-gel process and deposited with Langmuir-Blodgett technique. Different syntheses routes have been investigated and compared regarding the optical properties of the PCs. Finally a numerical model based on an ideal opal network including defect influence is used to explain these experimental results.

Published
2015

71. New Synthesis Strategies for Luminescent YVO4:Eu and EuVO4 Nanoparticles with H2O2 Selective Sensing Properties

Author

Bruno Viana, Karine Valle, Denis Autissier, Natacha Duée, David Portehault, Chrystel Ambard, Franck Pereira, Clément Sanchez, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)

Subjects
Aqueous solution, Nanostructure, Materials science, General Chemical Engineering, Nucleation, Nanoparticle, Nanotechnology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, Highly selective, chemistry.chemical_compound, chemistry, Materials Chemistry, Luminescence, Hydrogen peroxide, Surface states
Abstract

International audience; Nowadays, because of safety demands, the controlled design of efficient and selective sensors for hydrogen peroxide is paramount. Therefore, we develop herein new strategies of aqueous synthesis of crystalline YVO4:Eu and EuVO4 nanoparticles based on a rigorous control of the pH and of the nucleation step via microwave heating. These routes allow a precise control of composition, nanostructure, and surface states of the resulting luminescent nanoparticles that are structurally and optically characterized via a large set of modern techniques. Moreover, these nanoparticles exhibit reproducible optical responses that are highly selective to hydrogen peroxide and present excellent detection thresholds as low as 0.05 ppm in solution. These remarkable performances allow the design of a new family of H2O2 sensors, which surpass state-of-the-art inorganic optical sensors in liquid phase detection tests.

Published
2015

72. Charge Transfer at Hybrid Interfaces: Plasmonics of Aromatic Thiol-Capped Gold Nanoparticles

Author

Clément Sanchez, Cédric Boissière, Xavier Paquez, David Portehault, François Ribot, Claire Goldmann, Rémi Lazzari, Corinne Chanéac, Oxydes en basses dimensions (INSP-E9), Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Edifices Nanométriques (LEDNA), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), C'Nano Ile de France DIM Nano-K under the project NaJaH, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, General Physics and Astronomy, Nanotechnology, 02 engineering and technology, Dielectric, 010402 general chemistry, 01 natural sciences, Metal, aromatic ligands, General Materials Science, Surface plasmon resonance, Spectroscopy, Plasmon, thiols, Range (particle radiation), plasmonic properties, General Engineering, charge transfer, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Core (optical fiber), Colloidal gold, visual_art, gold nanoparticles, visual_art.visual_art_medium, 0210 nano-technology
Abstract

International audience; Although gold nanoparticles stabilized by organic thiols are the building blocks in a wide range of applications, the role of the ligands on the plasmon resonance of the metal core has been mostly ignored until now. Herein, a methodology based on the combination of spectroscopic ellipsometry and UV-vis spectroscopy is applied to extract dielectric functions of the different components. It is shown that aromatic thiols allow a significant charge transfer at the hybrid interface with the sand d bands of the gold core that yields ``giant'' red shifts of the plasmon band, up to 40 nm for spherical particles in the size range of 3-5 nm. These results suggest that hybrid nanoplasmonic devices may be designed through the suitable choice of metal core and organic components for optimized charge exchange.

Published
2015

73. Indentation hardness and scratch tests for thin layers manufactured by sol-gel process

Author

François Compoint, Clément Sanchez, Philippe Belleville, Christel Ambard, Karine Valle, Hervé Piombini, CEA Le Ripault (CEA Le Ripault), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Matériaux Hybrides et Nanomatériaux (MHN), Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, and Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Digital image correlation, Materials science, Thin layers, Microscope, Diamond, [CHIM.MATE]Chemical Sciences/Material chemistry, engineering.material, Indentation hardness, law.invention, Scratch, law, engineering, Composite material, computer, Layer (electronics), Sol-gel, computer.programming_language
Abstract

International audience; We introduce our first tests to characterize the mechanical properties of elastic layer manufactured by sol-gel process obtained with an indenter designed from a microscope. They are performed with a microscope and a diamond tip

Published
2015

74. Chiral habit selection on nanostructured epitaxial quartz films

Author

Juan Rodríguez-Carvajal, Adrian Carretero-Genevrier, Laura Picas, Clément Sanchez, Martí Gich, INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), and ILL

Subjects
Silicon, Materials science, Surface Properties, Nanotechnology, Epitaxy, Microscopy, Atomic Force, 01 natural sciences, law.invention, [SPI.MAT]Engineering Sciences [physics]/Materials, [SPI]Engineering Sciences [physics], law, 0103 physical sciences, Physical and Theoretical Chemistry, Crystallization, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, 010306 general physics, 010303 astronomy & astrophysics, Quartz, Atomic force microscopy, Epitaxial thin film, Nanostructures, Chemical physics, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Crystallite
Abstract

International audience; Understanding the crystallization of enantiomorphically pure systems can be relevant to diverse fields such as the study of the origins of life or the purification of racemates. Here we report on polycrystalline epitaxial thin films of quartz on Si substrates displaying two distinct types of chiral habits that never coexist in the same film. We combine Atomic Force Microscopy (AFM) analysis and computer-assisted crystallographic calculations to make a detailed study of these habits of quartz. By estimating the surface energies of the observed crystallites we argue that the films are enantiomorphically pure and we briefly outline a possible mechanism to explain the habit and chiral selection in this system.

Published
2015

75. Crystallization of hollow mesoporous silica nanoparticles

Author

DRISKO, G., CARRETERO-GENEVRIER, Adrien, Perrot, A., GICH, M., GAZQUEZ, J., Rodríguez-Carvajal, J., FAVRE, Luc, Grosso, D., Boissière, C., Sanchez, C., INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), Laboratoire d'Ingénierie des Matériaux de Bretagne (LIMATB), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université de Brest (UBO), Institut Laue-Langevin (ILL), ILL, Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (IM2NP), Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)

Subjects
inorganic chemicals, [SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, respiratory system, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience; Complex 3D macrostructured nanoparticles are transformed from amorphous silica into pure polycrystalline α-quartz using catalytic quantities of alkaline earths as devitrificants. Walls as thin as 10 nm could be crystallized without losing the architecture of the particles. The roles of cation size and the mol% of incorporated devitrificant on crystallization behavior are studied, with Mg2+, Ca2+, Sr2+ and Ba2+ all producing pure α-quartz under certain conditions.

Published
2015

76. Nanoporous polymeric templates systems for the confined growth of epitaxial ferromagnetic complex oxides nanostructures

Author

CARRETERO-GENEVRIER, Adrien, ORO-SOLE, J., GAZQUEZ, J., Puig, T., Obradors, X., Sanchez, C., Ferain, E., Rodríguez-Carvajal, J., Mestres, N., INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Unité de Physique et de Chimie des Hauts Polymères, Université Catholique de Louvain = Catholic University of Louvain (UCL), Institut Laue-Langevin (ILL), and ILL

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

9-13 March 2015; International audience; Selective synthesis for integrated nanomaterials with controllable morphology and composition represents an emerging research area in nanoscience and nanotechnology because the intrinsic properties behind nanostructures are generally phase-, shape-, and size- dependent. In this direction the present work shows the capabilities of nanoporous polymeric template systems directly supported on different substrates for the confined growth of epitaxial ferromagnetic complex oxides nanostructures (see figure1). In particular, we describe the versatility and potentiality of sol-gel precursor solutions combined with track-etched polymers to synthesize i) vertical polycrystalline La0.7Sr0.3MnO3 nanorods on top of single crystal perovskites [1,2], ii) single crystalline manganese based octahedral molecular sieves (OMS) nanowires on silicon substrates [3-5], and iii) the epitaxial directional growth of single crystal OMS nanowires when grown on top of fluorite-type substrates [6]. The influence of the distinct growth parameters on the nanostructural evolution of the resulting nanostructures and their magnetic properties are studied in detail. Therefore, we demonstrate that the combination of soft-chemistry and epitaxial growth opens new opportunities for the effective integration of novel technological functional complex oxides nanomaterials on different substrates. [1] A. Carretero-Genevrier et al. Chem.Soc.Rev., 43, 2042-2054 (2014) [2] A. Carretero-Genevrier et al. Adv.Funct.Mater., 20, 892-897. (2010). [3] A. Carretero-Genevrier et al. Chem.Mater., 26 (2), 1019–1028 (2014) [4] A. Carretero-Genevrier et al. JACS., 133 (11), 4053–4061 (2011) [5] J. Gazquez et al. M&M., 20 (03) 760-766 (2014) [6] A. Carretero-Genevrier et al. Chem.Comm., 48, 6223-6225 (2012)

Published
2015

77. Thin epitaxial quartz films with tunable textures on silicon

Author

CARRETERO-GENEVRIER, Adrien, GICH, M., PICAS, L., GAZQUEZ, J., DRISKO, G., Boissière, C., Grosso, D., Rodríguez-Carvajal, J., Sanchez, C., INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), ILL, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

9-13 March 2015; International audience; The integration of quartz on silicon in thin film form is appealing for its prospective applications in sensing and electronics. For instance, this could be used to make oscillators with higher resonance frequencies, in new electromechanical devices or mass sensors showing improved detection limits. We have recently reported the epitaxial growth of quartz films on silicon following a soft-chemistry approach1. The aim of this contribution is to discuss in detail the mechanisms of this synthesis. The films are obtained by the crystallization of amorphous silica films prepared by chemical solution deposition. Two key components of the solution are Sr2+, acting as catalyst for the crystallization of silica, and amphipilic templates playing the role of structuring agents and assisting in the crucial phase separation of the catalyst. The good matching between the quartz and silicon cell parameters is also essential in the stabilization of quartz over other SiO2 polymorphs and is at the origin of the epitaxial growth. The films are piezoelectric and can be tailored to be dense or to present an ordered porosity with pore diameters ranging from a few tenths of nanometer to the micron scale.

Published
2015

78. Special Issue Advances in Applied Clay Science Intercalated nanomaterials: From functional clays to advanced hybrid lamellar compounds Preface

Author

Zhu, Runliang, Sanchez, Clément, Bergaya, Faiza, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche sur la Matière Divisée (CRMD), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), and Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[CHIM.MATE]Chemical Sciences/Material chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience; no abstract

Published
2014

79. Novel Au/Pd@carbon macrocellular foams as electrodes for lithium–sulfur batteries

Author

Christel Gervais, Rezan Demir-Cakan, Clément Sanchez, Mathieu Morcrette, Raphaël Janot, Rénal Backov, Martin Depardieu, Ahmed Bentaleb, Marc Birot, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire réactivité et chimie des solides - UMR CNRS 7314 (LRCS), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Institut des Sciences Moléculaires (ISM), and Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Nucleation, Nanoparticle, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, engineering.material, 010402 general chemistry, 7. Clean energy, 01 natural sciences, law.invention, chemistry.chemical_compound, law, General Materials Science, Polysulfide, Power density, Renewable Energy, Sustainability and the Environment, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Cathode, 0104 chemical sciences, chemistry, Chemical engineering, Electrode, engineering, Noble metal, 0210 nano-technology, Carbon
Abstract

Macro-mesocellular carbonaceous foams bearing metallic (Pd or Au) nanoparticles were synthesized and used to confine polysulfides at the cathode of lithium–sulfur (Li–S) batteries. We show that noble metal nanoparticles are useful for tuning the properties of cathode materials. On one hand, the surface chemistry of the metals enhances the polysulfide anchoring strength involved in carbon-based Li–S electrode cycling batteries. On the other hand, the metallic nanoparticles' nucleation and growth decreases the carbonaceous foam's mesoporosity appearing, at first glance, as a penalty. The Au@C-HIPE(80HF) sample shows a capacity for the first discharge at 327 mA h cm−3 decreasing to 182 mA h cm−3 after 50 cycles, corresponding, respectively, to 430 and 240 mA h g−1. The most efficient sample in terms of power density per mass, C-HIPE(2P5HF), exhibits a capacity for the first discharge at 202 mA h cm−3 decreasing to 150 mA h cm−3 after 50 cycles (respectively 1680 and 1000 mA h g−1). Hence, considering the capacity retention, the most interesting sample (C-HIPE(2P5HF)), if power density per weight is taken as the main criteria of choice, becomes one of the least efficient if we consider power density per volume. This work further demonstrates the importance of normalizing the power density not only by weight (mA h g−1) but also by volume (mA h cm−3) in order to provide absolute and comparable energy storage capabilities from one sample to another.

Published
2014

80. Hybrid materials science: a promised land for the integrative design of multifunctional materials

Author

Clément Sanchez, Laurence Rozes, Lionel Nicole, Christel Laberty-Robert, Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), and Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Computer science, Serendipity, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, Nanocomposites, Basic research, Human culture, Inorganic Chemicals, Drug Design, General Materials Science, Industrial market, Organic Chemicals, Hybrid material, Crystallization, Forecasting
Abstract

International audience; For more than 5000 years, organic-inorganic composite materials created by men via skill and serendipity have been part of human culture and customs. The concept of ``hybrid organic-inorganic'' nanocomposites exploded in the second half of the 20th century with the expansion of the so-called ``chimie douce'' which led to many collaborations between a large set of chemists, physicists and biologists. Consequently, the scientific melting pot of these very different scientific communities created a new pluridisciplinary school of thought. Today, the tremendous effort of basic research performed in the last twenty years allows tailor-made multifunctional hybrid materials with perfect control over composition, structure and shape. Some of these hybrid materials have already entered the industrial market. Many tailor-made multiscale hybrids are increasingly impacting numerous fields of applications: optics, catalysis, energy, environment, nanomedicine, etc. In the present feature article, we emphasize several fundamental and applied aspects of the hybrid materials field: bioreplication, mesostructured thin films, Lego-like chemistry designed hybrid nanocomposites, and advanced hybrid materials for energy. Finally, a few commercial applications of hybrid materials will be presented.

Published
2014

81. Confinement-Induced Growth of Au Nanoparticles Entrapped in Mesoporous TiO2 Thin Films Evidenced by in Situ Thermo- Ellipsometry

Author

Eduardo D. Martínez, Horacio Esteban Troiani, Cédric Boissière, Galo J. A. A. Soler-Illia, Clément Sanchez, David Grosso, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ANPCyT [PICT 1848, 2087], ECOS-MINCyT binational program [A08E0S], ABTLUS, and CONICET

Subjects
Materials science, Nanoparticle, Metal nanoparticles, Nanotechnology, 02 engineering and technology, Thermal treatment, INGENIERÍAS Y TECNOLOGÍAS, 010402 general chemistry, 01 natural sciences, Ellipsometry, Physical and Theoretical Chemistry, Thin film, Nanotecnología, Nanocomposite, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Nano-materiales, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, X-ray reflectivity, General Energy, Chemical engineering, Colloidal gold, Coarsening, Mesoporous materiasl, 0210 nano-technology, Mesoporous material, ellipsometry
Abstract

Metal-porous oxide nanocomposites present great interest in optical devices and heterogeneous catalysis. For these applications, particle shape and size control, as well as accessibility, are critical aspects. In this work, gold nanoparticles (NPs) were infiltrated into mesoporous TiO2 thin films (MTTF) by an impregnation-reduction method. In situ ellipsometry measurements were performed during thermal treatment to follow in real time the changes in the optical constants and thickness of the composites systems while being submitted to continuous heating at different rates, from room temperature up to 600 °C. Complementary characterization by UV–visible spectrophotometry, grazing incident wide angle scattering (GIWAXS), and X-ray reflectometry (XRR) were performed. TEM microscopy was used to analyze the morphological changes in the composite films after the thermal treatment. Our experiments demonstrate that particle coarsening starts at temperatures below 200 °C through the processes of ripening and particle migration, leading to changes in the particle size distribution (PSD) until a mechanical restriction, due to the porous geometry, induces a change of the particle shape from spherical to ellipsoidal. This results in an internal stress that swells the mesoporous film. The effect of the gold filling fraction and the heating ramp was analyzed. A mechanism based on the kinetics of particle migration and coalescence, through the modeling of the localized surface plasmon resonance under the dipolar approximation, is proposed to explain the changes in the optical properties of these composites materials and unravel the thermal activated processes occurring in metal crystallites supported on porous oxide frameworks. Fil: Martínez, Eduardo David. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina Fil: Cédric, Boissiere. College de France; Francia Fil: Grosso, David. College de France; Francia Fil: Sanchez, Clément. College de France; Francia Fil: Troiani, Horacio Esteban. Comision Nacional de Energia Atomica. Gerencia D/area de Energia Nuclear; Argentina Fil: Galo, J. A. A. Soler Illia. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina

Published
2014

82. Effect of the size and distribution of supported Ru nanoparticles on their activity in ammonia synthesis under mild reaction conditions

Author

Clément Sanchez, Camila Fernández, Damien P. Debecker, Capucine Sassoye, Patricio Ruiz, Laboratoire d'Océanographie Microbienne (LOMIC), Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Observatoire océanologique de Banyuls (OOB), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Catalyse et Chimie des matériaux divisés (CATA), UCL, Belgium National Fund for Scientific Research (FSR-FNRS), Observatoire océanologique de Banyuls (OOB), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Hydrogen, Chemistry, Process Chemistry and Technology, Inorganic chemistry, chemistry.chemical_element, Nanoparticle, 02 engineering and technology, Size distribution, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Catalysis, 0104 chemical sciences, Ruthenium, Ammonia production, Colloid, Adsorption, Low-temperature ammonia synthesis, Ru supported catalyst, Catalytic cooperation, Microemulsion, 0210 nano-technology
Abstract

International audience; Ru/gamma-Al2O3 catalysts were prepared using three different methods: wet impregnation, colloidal method and microemulsion. Ru-supported nanoparticles with different average sizes and distribution of sizes were obtained. The catalysts were tested in ammonia synthesis under mild reaction conditions, namely low temperature (100 degrees C) and low pressure (4 bar), and characterized by N-2 adsorption, XRD, XPS, TEM and TPR techniques. The results indicate that a good catalytic performance can be achieved by Ru supported nanoparticles fulfilling two requirements: (i) a relatively high average size (despite the usual assertion that only small particles are required) and (ii) a broad distribution of sizes that ensures the presence of both small particles, containing highly active sites, and large nanoparticles, which are shown to promote the reaction on small particles. This promotion results from a cooperative effect between small and large nanoparticles in good contact, which also allows keeping a highly reduced surface of ruthenium. It is proposed that, under mild reaction conditions, large Ru nanoparticles promote the ammonia synthesis reaction by allowing a more effective activation and transfer of hydrogen atoms, able to hydrogenate strongly adsorbed nitrogen atoms, and thus to release active sites for the activation of N2. (c) 2013 Elsevier B.V. All rights reserved.

Published
2014

83. New Fe2TiO5-based nanoheterostructured mesoporous photoanodes with improved visible light photoresponses

Author

Gianguido Baldinozzi, Moulay Tahar Sougrati, E. Courtin, Lorenzo Stievano, Clément Sanchez, Christel Laberty-Robert, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Structures, Propriétés et Modélisation des solides (SPMS), Institut de Chimie du CNRS (INC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)

Subjects
Anatase, Materials science, Renewable Energy, Sustainability and the Environment, Nanotechnology, 02 engineering and technology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, Hematite, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Nanocrystalline material, 0104 chemical sciences, Chemical engineering, X-ray photoelectron spectroscopy, Oxidation state, visual_art, Mössbauer spectroscopy, visual_art.visual_art_medium, General Materials Science, 0210 nano-technology, Mesoporous material, Visible spectrum
Abstract

International audience; Triphasic nanocrystalline porous material based Fex-TiO2 anatase, pseudo-brookite and hematite are generated via a simple templated growth based strategy followed by carefully controlled temperature/atmosphere treatments. As shown by XRD, SEM, and TEM experiments the resulting nano-crystalline mesoporous films exhibit optimized bicontinuous pore-solid architectures and high surface-areas. Mössbauer spectroscopy and XPS analyses indicate that FeIII is the main iron oxidation state present in the films.

Published
2014

84. Heteroepitaxial devitrification of silica to integrate functional oxide nanostructures on silicon

Author

CARRETERO-GENEVRIER, Adrien, GICH, M., PICAS, L., GAZQUEZ, J., ORO-SOLE, J., DRISKO, G., Grosso, D., Ferain, E., Puig, T., Obradors, X., Sanchez, C., Rodríguez-Carvajal, J., Mestres, N., INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Unité de Physique et de Chimie des Hauts Polymères, Université Catholique de Louvain = Catholic University of Louvain (UCL), Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), and ILL

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

26-30 Mai 2014; International audience; The integration of quartz on silicon in thin film form is a challenging issue due to the differences in the crystal structures of these materials. In this regard, this work overcomes the main challenges for the integration of novel functional oxide materials on silicon including (i) epitaxial piezoelectric α-quartz thin films [1] and (ii) 1D single crystalline phases of manganese oxides that share common growth mechanisms [2,3]. The aim of this contribution is to discuss in detail the non classical nucleation and crystallization mechanisms of these materials grown from chemical solutions. Quartz films are crystallized by a confined devitrification of amorphous silica films assisted by a heterogeneous catalysis driven by alkaline earth cations present in the precursor solution. The films are made of perfectly oriented individual crystallites epitaxially grown on (100)-Si. The active influence of the Si substrate mediates the preferential orientation of crystal nuclei, yielding competitive growth and producing a columnar microstructure. Quartz films are piezoelectric and can be used as template for the epitaxial growth of manganese oxide nanowires on silicon. This methodology exhibits a great potential for the design of novel oxide compounds on silicon with unique properties. [1]A. Carretero-Genevrier et al. Science 340, 827 (2013) [2]A. Carretero-Genevrier et al. Chem.Mater. 10.1021/cm403064u (2013) [3]A. Carretero-Genevrier et al. Chem.Soc.Rev. 10.1039/C3CS60288E (2013)

Published
2014

85. Carbonaceous multiscale-cellular foams as novel electrodes for stable, efficient lithium-sulfur batteries

Author

Clément Sanchez, Marc Birot, Rezan Demir-Cakan, Christel Gervais, Rénal Backov, Mathieu Morcrette, Ahmed Bentaleb, Martin Depardieu, Raphaël Janot, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire réactivité et chimie des solides - UMR CNRS 7314 (LRCS), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Réseau sur le stockage électrochimique de l'énergie (RS2E), Université de Picardie Jules Verne (UPJV)-Institut de Chimie du CNRS (INC)-Aix Marseille Université (AMU)-Université de Pau et des Pays de l'Adour (UPPA)-Université de Nantes (UN)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Gebze Teknik Üniversitesi [Gebze], Université de Picardie Jules Verne (UPJV)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Aix Marseille Université (AMU)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Université de Picardie Jules Verne (UPJV)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), and Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Battery (electricity), Materials science, General Chemical Engineering, Carbon nanofoam, Nanotechnology, 02 engineering and technology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 7. Clean energy, 01 natural sciences, 0104 chemical sciences, electrodes : lithium-sulfur batteries, Template, Chemical engineering, Specific surface area, Electrode, Copolymer, Carbonaceous multiscale-cellular foams, Lithium sulfur, 0210 nano-technology, Pyrolysis
Abstract

6 pages; International audience; Porous carbon foamswere prepared by pyrolysis of a phenolic resin by a dual template approach using silicamonoliths as hard templates and triblock copolymers as soft templating agents. A macroporosity of 50-80% arose from the Si(HIPE) hard template, while the soft template generated micro- or meso-porosity according to the operating procedure. The final materials exhibited a BET specific surface area of 400-900 m2 g-1, depending on whether non-ionic surfactants were used during the synthesis; moreover, their performances as Li-sulfide battery positive electrodes were investigated. We determined that the novel 2P5HF carbon foam presents more than 800 mA h g-1 (150 mA h cm-3) of remnant capacity after 50 cycles, an unprecedented performance.

Published
2014

86. Nano-building block based-hybrid organic-inorganic copolymers with self-healing properties

Author

Alain Guinault, Laurence Rozes, Stephane Delalande, Clément Sanchez, F. Potier, François Ribot, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), inconnu, and Inconnu

Subjects
Materials science, Rubber-like elasticitie, Self-healing properties, Matériaux [Sciences de l'ingénieur], Polymers and Plastics, Ionic bonding, chemistry.chemical_element, Bioengineering, Nanotechnology, 02 engineering and technology, 010402 general chemistry, Organic-inorganic copolymers, 01 natural sciences, Biochemistry, chemistry.chemical_compound, Nano, Copolymer, Mechanical damages, Elasticity (economics), Room temperature, chemistry.chemical_classification, Acrylate, Mécanique [Sciences de l'ingénieur], Organic Chemistry, Polymer, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Poly(n-butyl acrylate), Dynamic materials, chemistry, Self-healing, 0210 nano-technology, Tin, Non-covalent interaction
Abstract

International audience; New dynamic materials, that can repair themselves after strong damage, have been designed by hybridization of polymers with structurally well-defined nanobuilding units. The controlled design of cross-linked poly(n-butyl acrylate) (pBuA) has been performed by introducing a very low amount of a specific tin oxo-cluster. Sacrificial domains with non-covalent interactions (i.e. ionic bonds) developed at the hybrid interface play a double role. Such interactions are strong enough to cross-link the polymer, which consequently exhibits rubber-like elasticity behavior and labile enough to enable, after severe mechanical damage, dynamic bond recombination leading to an efficient healing process at room temperature. In agreement with the nature of the reversible links at the hybrid interface, the healing process can speed up considerably with temperature. H-1 and Sn-119 PFG NMR has been used to evidence the dynamic nature of these peculiar cross-linking nodes.

Published
2014

87. Nano-spots induced break of the chemical inertness of boron: a new route toward reversible hydrogen storage applications

Author

Rénal Backov, Martin Depardieu, Christel Gervais, Clément Sanchez, Mathieu Morcrette, Raphaël Janot, Marc Birot, Hervé Deleuze, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire réactivité et chimie des solides - UMR CNRS 7314 (LRCS), Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Institut des Sciences Moléculaires (ISM), and Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Renewable Energy, Sustainability and the Environment, Nucleation, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Metal, Hydrogen storage, Adsorption, Chemical engineering, chemistry, visual_art, Nano, visual_art.visual_art_medium, General Materials Science, Wetting, Absorption (chemistry), 0210 nano-technology, Boron
Abstract

Novel LiBH4–metal-loaded carbonaceous foams have been designed to trigger reversible hydrogen storage properties. The metallic nanoparticles favour preferential wetting of LiBH4 on their surface and subsequent nucleation and growth, a configuration in which borate formation is strongly minimized. A cooperative effect between lower boron oxidation and the presence of metallic particles bearing intrinsic high heat capacity (acting as high temperature nanospots) promotes a strong improvement toward the rehydrogenation process, where the chemical inertness of boron has been overcome in this way for the first time. Hence, the LiBH4–M@C-HIPE(25HF) hybrid macrocellular foams (with M = Pd or Au) facilitate a reversible hydrogen storage process with a remnant capacity of about 7.4 wt% H2 (related to LiBH4) after 5 desorption–absorption ) hybrid…” and throughout the article should “absorption” be changed to “adsorption”??>cycles.

Published
2014

88. Integrating functional oxide nanomaterials in silicon technology by chemical solution deposition

Author

CARRETERO-GENEVRIER, Adrien, GICH, M., PICAS, L., GAZQUEZ, J., ORO-SOLE, J., DRISKO, G., Ferain, E., Rodríguez-Carvajal, J., Puig, T., Obradors, X., Mestres, N., Sanchez, C., INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Unité de Physique et de Chimie des Hauts Polymères, Université Catholique de Louvain = Catholic University of Louvain (UCL), Institut Laue-Langevin (ILL), ILL, Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université Catholique de Louvain (UCL), Consejo Superior de Investigaciones Científicas [Spain] (CSIC), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

24-28 Janvier 2014; International audience; In the past years, great efforts have been devoted to combine the functionality of oxides with the performances of semiconductor platforms for the development of novel and more efficient device applications. However, further incorporation of functional oxide nanostructures as active materials in electronics critically depends on the ability to integrate crystalline metal oxides into silicon structures. In this regard, the presented work takes advantage of all the benefits of soft chemistry to overcome the main challenges for the monolithic integration of novel nanostructured functional oxide materials on silicon including (i) epitaxial piezoelectric α-quartz thin films with tunable textures on silicon wafers [1] and (ii) 1D single crystalline phases of manganese oxide based nanostructures with enhanced ferromagnetic properties on silicon wafers that share common growth mechanisms [2]. Importantly, these mechanisms are governed by a thermally activated devitrification of the native amorphous silica surface layer assisted by a heterogeneous catalysis under atmospheric conditions driven by alkaline earth cations present in the precursor solution. Quartz films are made of perfectly oriented individual crystallites epitaxially grown on (100) face of Si substrate with a controlled porosity after using templating agents. Moreover, a quantitative study of the converse piezoelectric effect of quartz thin films through piezoresponse force microscopy shows that the piezoelectric coefficient d33 is between 1.5 and 3.5 pm/V which is in agreement with the 2.3 pm/V of the quartz single crystal d11. Manganese based molecular sieve nanowires growth mechanism, involves the use of track-etched nanoporous polymer templates combined with the controlled growth of quartz thin films at the silicon surface, which allowed OMS nanowires to stabilize and crystallize. All together, the methodology presented here exhibits a great potential and offers a pathway to design novel oxide compounds on silicon substrates by chemical routes with unique optical, electric, or magnetic properties. [1] A.Carretero-Genevrier et al. Science 340, (2013) 827 [2] A.Carretero-Genevrier et al. Chem.Soc.Rev. (2014) DOI: 10.1039/C3CS60288E

Published
2014

89. Electro-optic modulation using hybrid silicon-ferroelectric oxide slot waveguide

Author

Sébastien Cueff, Xuan Hu, Regis Orobtchouk, Pedro Rojo Romeo, Romain Bachelet, Bertrand Vilquin, Catherine Dubourdieu, Philippe Regreny, Claude Botella, Geneviève Grenet, Guillaume Saint-Girons, Castéra, P., Sanchez, C., Angelova, T., Bellieres, L., Griol, A., Gutierrez, A., Sanchis, P., Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), INL - Nanophotonique (INL - Photonique), Institut des Nanotechnologies de Lyon (INL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), INL - Hétéroepitaxie et Nanostructures (INL - H&N), Emissions, Dépôts, Impacts (EDI), Laboratoire d'aérologie (LAERO), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Nanophotonics Technology Center, Universitat Politècnica de València (UPV), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées, Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

8-9 décembre 2014; International audience; no abstract

Published
2014

90. Hybrid Nanocomposites with Tunable Alignment of the Magnetic Nanorod Filler

Author

Ivan Dozov, Doru Constantin, Céline Rosticher, Cyrille Rochas, Corinne Chanéac, Fabien Perineau, Laurence Rozes, Patrick Davidson, Clément Sanchez, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Solides (LPS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), Centre de Recherches sur les Macromolécules Végétales (CERMAV), and Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)

Subjects
Condensed Matter - Materials Science, Materials science, Nanocomposite, Birefringence, Condensed matter physics, Scattering, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, magnetic field, Condensed Matter - Soft Condensed Matter, Magnetic field, PHEMA, Liquid crystal, Phase (matter), nanocomposites, Particle, Soft Condensed Matter (cond-mat.soft), goethite, General Materials Science, Nanorod, nanorods, nematic, [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
Abstract

International audience; For many important applications, the performance of polymer–anisotropic particle nanocomposite materials strongly depends on the orientation of the nanoparticles. Using the very peculiar magnetic properties of goethite (α-FeOOH) nanorods, we produced goethite–poly(hydroxyethyl methacrylate) nanocomposites in which the alignment direction and the level of orientation of the nanorods could easily be tuned by simply adjusting the intensity of a magnetic field applied during polymerization. Because the particle volume fraction was kept low (1–5.5 vol %), we used the orientational order induced by the field in the isotropic phase rather than the spontaneous orientational order of the nematic phase. At the strongest field values (up to 1.5 T), the particles exhibit almost perfect antinematic alignment, as measured by optical birefringence and small-angle X-ray scattering. The results of these two techniques are in remarkably good agreement, validating the use of birefringence measurements for quantifying the degree of orientational order. We also demonstrate that the ordering induced by the field in the isotropic suspension is preserved in the final material after field removal. This work illustrates the interest, for such problems, of considering the field-induced alignment of anisotropic nanoparticles in the isotropic phase, an approach that is effective at low filler content, that avoids the need of controlling the nematic texture, and that allows tuning of the orientation level of the particles at will simply by adjusting the field intensity.

Published
2014

91. 'Integrative sol-gel chemistry': a nanofoundry for materials science

Author

Rénal Backov, David Grosso, Cédric Boissière, Clément Sanchez, Marco Faustini, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de recherches Paul Pascal (CRPP), and Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Solid-state chemistry, Fabrication, Materials science, Nanotechnology, 02 engineering and technology, Processing, 010402 general chemistry, 01 natural sciences, Dip-coating, Hierarchical, Biomaterials, Integrative approach, Nano, Materials Chemistry, Sol-gel, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Spray drying, Ceramics and Composites, Nanomedicine, 0210 nano-technology, Hybrid material, Nanostructured
Abstract

8 pages; International audience; Integrative sol-gel chemistry based strategies allow, through the strong coupling between materials chemistry and advanced processing, the fabrication of functional inorganic and hybrid materials. The following article will highlight some of the main accomplishments performed during the last years in the design of nano- and multi-scale structured materials shaped as thin films, powders and monoliths with additional functionalities and outstanding properties in several fields of application such as optics, catalysis and nanomedicine. In particular we discuss the key role played by the adapted liquid processing of sol- gel based solution. We will describe some technologies (including dip coating, spray drying, droplet-microfluidics, ink-jet and foaming) in which a high degree of control in term of liquid shaping/evaporation/manipulation is required in order to achieve specific functionalities.

Published
2014

92. Nanocrystalline mesoporous LiFePO4 thin-films as cathodes for Li-ion microbatteries

Author

Clément Sanchez, Christel Laberty-Robert, Mario Aparicio, Alicia Durán, Jadra Mosa, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Departamento de Matemática Aplicada [Valladolid] (MA), Universidad de Valladolid [Valladolid] (UVa), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), CNRS, Spanish Science and Innovation Ministry from National Program for I+D internationalising (ACI-PLAN E) [PLE2009-0074], Japanese Science and Technology Agency (JST), Ministry of Science and Innovation [EX-2009-0671], JAE-Doc program of CSIC, and JAE-Doc program of European Social Fund (ESF)

Subjects
Materials science, Renewable Energy, Sustainability and the Environment, Reducing atmosphere, Nanoparticle, Nanotechnology, 02 engineering and technology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Cathode, Nanocrystalline material, 0104 chemical sciences, law.invention, symbols.namesake, law, Electrode, symbols, General Materials Science, Thin film, 0210 nano-technology, Mesoporous material, Raman spectroscopy
Abstract

International audience; Mesoporous LiFePO4 thin films prepared using a facile and low-cost synthesis approach have been studied as electrodes for Li-ion batteries. LiFePO4 mesoporous films (similar to 300 nm) were synthesized by a template-directed sol-gel chemistry coupled with the dip-coating approach, followed by heat-treatment under a reducing atmosphere (10% H-2/N-2) at temperatures ranging from 400 to 760 degrees C. These mesostructured LiFePO4 films are constituted of a connected network of mesopores (similar to 60 nm) and an assembly of crystalline nanoparticles (similar to 50 nm) in the pore wall. In addition, the presence of carbon, evidenced by Raman spectroscopy, provides efficient electron pathways along the 3-D nanoarchitectures. Cycling performance was evaluated for optimal nanocrystalline LiFePO4 thin films showing an excellent high rate performance after 1000 cycles (158 mA h g(-1)). These data provide important information on new types of porous architectures for the design of efficient electrodes for micro-batteries.

Published
2014

93. Molecular Engineering of Functional Inorganic and Hybrid Materials

Author

Christel Laberty-Robert, Capucine Sassoye, David Portehault, Cédric Boissière, Corinne Chanéac, Marco Faustini, David Grosso, Lionel Nicole, Clément Sanchez, Sophie Cassaignon, Olivier Durupthy, Laurence Rozes, François Ribot, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Réseau sur le stockage électrochimique de l'énergie (RS2E), Université de Picardie Jules Verne (UPJV)-Institut de Chimie du CNRS (INC)-Aix Marseille Université (AMU)-Université de Pau et des Pays de l'Adour (UPPA)-Université de Nantes (UN)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM), inconnu, Inconnu, UPMC, CNRS, College de France, Université de Nantes (UN)-Aix Marseille Université (AMU)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Collège de France (CdF (institution))-Université de Picardie Jules Verne (UPJV)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA)

Subjects
Solid-state chemistry, Materials science, General Chemical Engineering, Complex system, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Field (computer science), Molecular engineering, bottom-up, integrative chemistry, Materials Chemistry, sol-gel, templated growth, nanomaterials, Structure (mathematical logic), Nanocomposite, hybrid, General Chemistry, Top-down and bottom-up design, self-assembly, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Characterization (materials science), processing, 0210 nano-technology
Abstract

International audience; For 25 years, Chemistry of Materials has been clearly providing a key forum to chemists, physicists, and engineers interested in materials preparation and characterization, in the search of unique physical properties and processing of innovative materials and devices. This short review presents a discussion on some recent advances in this field, illustrated with a few selected examples related to three of our main research areas: the synthesis of single nano-objects and the processing of porous and hierarchically structured materials and hybrid nanocomposite materials. A strong emphasis is also given to the need to realize a successful marriage between materials chemistry and smart processing. These cross-cutting approaches in the vein of bioinspired synthesis strategies are allowing the development of complex systems of various shapes with perfect mastery at different length scales of composition, structure, porosity, functionality, and morphology. These ``integrative strategies'', where all aspects of materials science are coupled, open a land of opportunities to tailor-made advanced inorganic and hybrid materials. Some of them are already impacting numerous societal concerns and industrial applications.

Published
2014

94. Aerosol route to nanostructured WO3-SiO2-Al2O3 metathesis catalysts: Toward higher propene yield

Author

Clément Sanchez, Cédric Boissère, Audrey Bonduelle, Mariana Stoyanova, Uwe Rodemerck, Damien P. Debecker, Alexandra Chaumonnot, Frederic Colbeau-Justin, Leibniz-Institut für Katalyse (LIKAT Rostock), Leibniz Association-Universität Rostock, Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IFP Energies nouvelles (IFPEN), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Universität Rostock-Leibniz Association

Subjects
Sol-gel, Ethylene, Alkene metathesis, Process Chemistry and Technology, Inorganic chemistry, EISA, [CHIM.MATE]Chemical Sciences/Material chemistry, Metathesis, 7. Clean energy, Catalysis, Propene, chemistry.chemical_compound, chemistry, Yield (chemistry), Surfactant, Mesoporous mixed oxide, Propylene, Dispersion (chemistry), Isomerization, Aerosol
Abstract

International audience; Aerosol processing is presented as a powerful new method to yield in one step highly efficient olefin metathesis catalysts. Combined with sol-gel chemistry, evaporation induced self-assembly and polyanions, it allows a fine tuning of the dispersion of WOx species and the generation of acidic matrices which are key parameters controlling the formation of active metathesis sites. These spray dried catalysts are characterized by N-2-physisorption, XRD, TEM, NH3-TPD, TPO, TPR, ICP-AES and systematically compared to relevant reference catalysts prepared by impregnation methods on different carriers (silica, alumina and silica-alumina). Tested in the industrially relevant cross-metathesis of ethene and 2-butene to propene, the new catalyst outcompetes reference catalysts, reaching 68 mmol(propene) g(-1) h(-1) at 250 degrees C. By-products formed by isomerization reactions remain very low and high propene yields (39%) are reached.

Published
2014

95. Direct Monolithic Integration of Vertical Single Crystalline Octahedral Molecular Sieve Nanowires on Silicon

Author

César Magén, Juan Rodríguez-Carvajal, Laura Miranda, Teresa Puig, Narcis Mestres, Clément Sanchez, Judith Oró-Solé, Adrian Carretero-Genevrier, Xavier Obradors, Jaume Gazquez, Etienne Ferain, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Léon Brillouin (LLB - UMR 12), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Departamento de Quimica Inorgnica, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Department of Materials Science and Engineering [Sheffield], University of Sheffield [Sheffield], College de France foundation, MICINN [MAT2008-01022, MAT2011-28874-c02-01], Consolider NANOSELECT [CSD2007-00041], Generalitat de Catalunya [2009 SGR 770 and Xarmae], EU, HIPERCHEM [NMP4-CT2005-516858], National Human Resources Mobility Program of the Spanish Ministry of Economy and Competitiveness, ORNL, DOE-BES, [COMPHOSOL2], and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Silicon, octahedral molecular sieves, General Chemical Engineering, Nanowire, manganese oxides, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, 010402 general chemistry, Molecular sieve, Epitaxy, 01 natural sciences, Soft chemistry, strontiomelane, Nanomaterials, hollandite, Materials Chemistry, Thin film, Nanoporous, epitaxial growth, soft chemistry, General Chemistry, quartz layers, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, nanowires, 0210 nano-technology, oxide nanowires integration
Abstract

International audience; We developed an original strategy to produce vertical epitaxial single crystalline manganese oxide octahedral molecular sieve (OMS) nanowires with tunable pore sizes and compositions on silicon substrates by using a chemical solution deposition approach. The nanowire growth mechanism involves the use of track-etched nanoporous polymer templates combined with the controlled growth of quartz thin films at the silicon surface, which allowed OMS nanowires to stabilize and crystallize, alpha-quartz thin films were obtained after thermal activated crystallization of the native amorphous silica surface layer assisted by Sr2+- or Ba2+-mediated heterogeneous catalysis in the air at 800 degrees C. These a-quartz thin films work as a selective template for the epitaxial growth of randomly oriented vertical OMS nanowires. Therefore, the combination of soft chemistry and epitaxial growth opens new opportunities for the effective integration of novel technological functional tunneled complex oxides nanomaterials on Si substrates.

Published
2014

96. Electro-optic modulation with functional oxides monolithically integrated on silicon

Author

Sébastien Cueff, Xuan Hu, Regis Orobtchouk, Pédro Rojo Romeo, Bachelet, C., Bertrand Vilquin, Hayes, M., Catherine Dubourdieu, Philippe Regreny, Geneviève Grenet, Guillaume Saint-Girons, Castéra, P., Sanchez, C., Angelova, T., Bellieres, L., Griol, A., Lopez, M., Giuterrez, A., Sanchis, P., Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), INL - Nanophotonique (INL - Photonique), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), INL - Hétéroepitaxie et Nanostructures (INL - H&N), CSNSM SEMI, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Emissions, Dépôts, Impacts (EDI), Laboratoire d'aérologie (LAERO), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Nanophotonics Technology Center, Universitat Politècnica de València (UPV), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-École Centrale de Lyon (ECL), Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3)

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

june 29-july 4 2014; International audience; no abstract

Published
2014

97. One−pot Route To Class II Hybrid Ionogels Electrolytes

Author

Fontaine, Olivier, Touidjine, Amina, Maréchal, Manuel, Bonhomme, Christian, Ribot, François, Geffroy, Bernard, Jousselme, Bruno, Sanchez, Clément, Laberty-Robert, Christel, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique des interfaces et des couches minces [Palaiseau] (LPICM), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie des Surfaces et Interfaces (LCSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National Polytechnique de Grenoble (INPG)-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)

Subjects
[CHIM.MATE]Chemical Sciences/Material chemistry
Abstract

International audience; A new system based on class II hybrid ionogels (Si-IL gels) has been developed for overcoming leaking problems associated with liquid electrolytes in dye-sensitized solar cells (DSSCs). We co-condensed a silica precursor with an alkoxysilane functionalized ionic liquid precursor, under acidic conditions, to obtain a hybrid ionogel where ionic liquid is covalently linked to silica domains. The morphology and the microstructure of the Si-IL xerogels were explored using NMR, SAXS and field emission scanning electron microscopy (FE-SEM). Cyclic voltammetry experiments were carried out to measure the apparent diffusion coefficient of the redox couple I−/I3− into these Si-IL gels. The diffusion coefficient of triiodide in the gel is comparable to the one observed in a solvent-free based ionic liquid electrolyte. These Si-IL gels were evaluated as electrolytes in quasi-solid-state DSSCs. For this purpose, various DSSCs have been fabricated. The cells containing Si-IL ionogels with 50 wt% of a silica modified liquid ionic precursor exhibit a short-circuit photocurrent of 2.8 mA cm−2, an open circuit voltage of 680 mV, a fill factor of 0.65, and an overall efficiency of 1.25%. Accordingly, this work constitutes a proof of concept.

Published
2014

98. Confined Sol-Gel route to epitaxial Octahedral Molecular Sieve nanowires on silicon

Author

CARRETERO-GENEVRIER, Adrien, ORO-SOLE, J., GAZQUEZ, J., Puig, T., Obradors, X., Sanchez, C., Ferain, E., Rodríguez-Carvajal, J., Mestres, N., INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Unité de Physique et de Chimie des Hauts Polymères, Université Catholique de Louvain = Catholic University of Louvain (UCL), Institut Laue-Langevin (ILL), and ILL

Subjects
[SPI]Engineering Sciences [physics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

26-30 Mai 2014; International audience; Manganese oxides octahedral molecular sieves (OMS) with mixed-valence frameworks have been widely used as bulk material in catalysis, semiconductor industry, and batteries. Monolithic direct integration of OMS with vertically oriented crystals on a semiconductor platform is challenging due to difficulties on preserving epitaxy, crystalline phase, and composition. Here, we developed a new strategy to produce vertical epitaxial single crystalline OMS nanowires with tunable composition and enhanced ferromagnetic properties on Si substrates by using a chemical solution deposition approach [1]. The nanowire growth mechanism involves the use of track-etched nanoporous polymer templates combined with the controlled growth of α-quartz thin films at the Si surface, which allowed OMS nanowires to stabilize and crystallize. α-quartz layers were obtained by thermally activated devitrification of the native amorphous silica surface layer assisted by a heterogeneous catalysis driven by alkaline earth cations (Sr2+, Ba2+ or Ca2+) present in the precursor solution [2]. Therefore, the combination of soft-chemistry and epitaxial growth opens new opportunities for the effective integration of novel technological functional tunneled complex oxides nanomaterials on Si substrates [3]. [1] A. Carretero-Genevrier et al. Chem.Soc.Rev. 10.1039/C3CS60288E (2013) [2] A. Carretero-Genevrier et al. Science 340, 827 (2013) [3] A. Carretero-Genevrier et al. Chem.Mater. 10.1021/cm403064u (2013)

Published
2014

99. Using Evaporation-Induced Self-Assembly for the Direct Drug Templating of Therapeutic Vectors with High Loading Fractions, Tunable Drug Release, and Controlled Degradation

Author

Cédric Boissière, Francisco J. Plou, Thomas Fontecave, Niki Baccile, Clément Sanchez, Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Drug, Materials science, General Chemical Engineering, media_common.quotation_subject, Spray-drying, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Matrix (chemical analysis), Ellipsometry, Amphiphile, hybrid materials, Materials Chemistry, spray-drying, Dissolution, media_common, Hydrolytic stability, Sophorolipid, Templating, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 3. Good health, 0104 chemical sciences, Chemical engineering, templating, Drug delivery, drug delivery, hydrolytic stability, Hybrid materials, 0210 nano-technology, Hybrid material
Abstract

A novel one-step approach for designing non aggregated silica-based mesostructured therapeutic vectors is presented. Evaporation Induced Self Assembly was used in combination with amphiphilic drugs for preparing already loaded class I and class II hybrid materials containing from 50 to 60 wt% (up to 75 vol%) of drug. A good mesostructuration was able to promote an interfacial control of the drug release in PBS medium with a complete absence of the initial burst release very often described in literature for water soluble drug release experiments. The investigation of both release mechanisms and matrix dissolution was conducted via in situ ellipsometry and NMR. It proved that the nature of the drug/matrix interaction, the chemical composition of the drug/matrix interface, as well as the mesostructuration quality parameters must be taken into account at the same time for tuning the drug release rate, while maintaining the dissolution rate of silica at a reasonable level for limiting its toxicity. It proved also that non-calcined as made silica-based class I hybrid materials can be efficiently used for tuning drug release kinetics from one hour to day scale

Published
2013

100. Flexible Electroactive Nanomaterials Biotemplated with Versatile M13 Phage Platforms

Author

Jacques Livage, Clément Sanchez, Guy Van Tran Nhieu, Christel Laberty-Robert, Liliana Irais Vera-Robles, Laboratoire de Chimie de la Matière Condensée de Paris (site Paris VI) (LCMCP (site Paris VI)), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF (institution))-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Mexican National Council for Science and Technology (CONACyT), and University Paris VI

Subjects
Materials science, General Materials Science, Nanotechnology, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 0210 nano-technology, Condensed Matter Physics, 01 natural sciences, ComputingMilieux_MISCELLANEOUS, 0104 chemical sciences, Nanomaterials
Abstract

International audience; no abstract

Published
2013

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