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

1. Hydroxyapatites as Versatile Inorganic Hosts of Unusual Pentavalent Manganese Cations

Author

María Hernando, José M. González-Calbet, Marina Parras, Christel Laberty-Robert, Aurea Varela, Gwenaëlle Rousse, José Luis Martínez, Laura Serrador, David Portehault, María Teresa Fernández-Díaz, Francisco Gonell, E. Matesanz, Clément Sanchez, Isabel Gómez-Recio, Almudena Torres-Pardo, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), Institut Laue-Langevin (ILL), ILL, Laboratoire des Sciences du Numérique de Nantes (LS2N), IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-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), Sorbonne Université (SU), Chaire Chimie des matériaux hybrides, and Reactive Materials for Electrochemical Systems (LCMCP-RMES )

Subjects
Chemistry, General Chemical Engineering, chemistry.chemical_element, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, General Chemistry, Manganese, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Polymer chemistry, Materials Chemistry, Hydroxyapatites, 0210 nano-technology
Abstract

International audience; Contrary to molecular species, only very few solids are reported to host manganese (V) species. Herein, we report three new compounds with a hydroxyapatite structural backbone built on the Mn V O 4 3− anion: Sr 5 [(Mn 1−x Si x)O 4 ] 3 (OH) 1−3x (x =0 and 0.053), Sr 5 (MnO 4) 3 (OH) 1−y F y (y = 0.90), and Sr 5 [(Mn 1−x Si x)-O 4 ] 3 F 1−3x (x = 0.058). These solids are fully characterized using powder X-ray and neutron powder diffraction, scanning transmission electron microscopy, electron energy loss spectroscopy (EELS), thermogravimetric analysis, and magnetic measurements. Especially, we report for the first time EELS Mn−L 2,3 spectra of manganese with the oxidation state (V). Contrary to other Mn(V) oxides, these solids and the nominal compound Sr 5 (MnO 4) 3 OH do not comprise Ba 2+ cations but rely only on Sr 2+ cations, showing that barium is not a required element to stabilize Mn(V) species in inorganic solids. We show that by tuning soft chemistry conditions on the one hand and post-treatment topological transformation conditions on the other hand, Mn(V) and hydroxyl groups can be substituted by Si(IV) and fluoride ions, respectively. Hence, we deliver solids with a potentially wide composition range. These compounds show significant oxygen anionic conduction, thus suggesting the emergence of new functional materials built from high-oxidation state manganese cations.

Published
2020

2. A Single Molecular Stoichiometric P‐Source for Phase‐Selective Synthesis of Crystalline and Amorphous Iron Phosphide Nanocatalysts

Author

Rémi F. André, Grégoire Le Corre, Clément Sanchez, Marc Fontecave, David W. Wakerley, Mohamed Selmane, Hansjörg Grützmacher, Capucine Sassoye, Sophie Carenco, Victor Mougel, Sarah Lamaison, Florian D'Accriscio, Erik Schrader, 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), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Institut des matériaux de Paris-Centre (IMPC), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Chaire Chimie des processus biologiques, Laboratoire de Chimie des Processus Biologiques (LCPB), and 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)

Subjects
Materials science, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Nanomaterial-based catalyst, 0104 chemical sciences, Amorphous solid, Biomaterials, chemistry.chemical_compound, Iron phosphide, Chemical engineering, chemistry, Phase (matter), Materials Chemistry, [CHIM]Chemical Sciences, Hydrogen evolution, 0210 nano-technology, Stoichiometry, Colloidal synthesis
Abstract

International audience; The formation of iron phosphide nanoparticles (FexP) is a well‐studied process. It usually uses air‐sensitive phosphorus precursors such as n‐trioctylphosphine or white phosphorus. In this study, we report the synthesis and characterization of a remarkably stable tetrakis(acyl)cyclotetraphosphane, P4(MesCO)4. We demonstrate that this compound can be used as a stoichiometric source of P(0) species in order to synthesize FeP and Fe2P nanoparticles at only 250 °C. This tunable process provides a route to monodisperse nanoparticles with different compositions and crystallinities. We combine X‐Ray photoelectron spectroscopy and atomic pair distribution function (PDF) to study the local order and bonding in the amorphous and crystalline materials. We show that crystalline FeP forms via an intermediate amorphous phase (obtained at a lower temperature) that presents local order similar to that of the crystalline sample. We explore their electrocatalytic properties for the hydrogen evolution reaction (HER) in acidic and neutral electrolytes. In both electrolytes, amorphous FeP is a more efficient catalyst than crystalline FeP, itself more efficient than crystalline Fe2P. Our study paves the way for a more systematic investigation of amorphous metal phosphide phases in electrocatalysis. It also shows the beneficial use of PDF on the highly challenging characterization of amorphous nanomaterials.

Published
2020

3. Shedding light onto the nano- and micro-structures of B-containing SiOC glasses using high resolution TEM 3D imaging

Author

Ovidiu Ersen, Gian Domenico Sorarù, Renzo Campostrini, Simona Moldovan, Clément Sanchez, 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), Groupe de physique des matériaux (GPM), Centre National de la Recherche Scientifique (CNRS)-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)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), 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), University of Trento [Trento], 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), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-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)-Institut de Recherche sur les Matériaux Avancés (IRMA), 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)-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)-Université de Caen Normandie (UNICAEN), 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), ANR-11-EQPX-0020,GENESIS,Groupe d'Etudes et de Nanoanalyses des Effets d'IrradiationS(2011), CCSD, Accord Elsevier, and Equipements d'excellence - Groupe d'Etudes et de Nanoanalyses des Effets d'IrradiationS - - GENESIS2011 - ANR-11-EQPX-0020 - EQPX - VALID

Subjects
010302 applied physics, Nanostructure, Materials science, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Nanocrystal, Chemical engineering, chemistry, Transmission electron microscopy, Covalent bond, [CHIM] Chemical Sciences, 0103 physical sciences, Nano, Materials Chemistry, Ceramics and Composites, [CHIM]Chemical Sciences, 0210 nano-technology, Porosity, Spectroscopy, Carbon, ComputingMilieux_MISCELLANEOUS
Abstract

The internal structure of nanostructured pyrolyzed SiBOC glasses has been analyzed using a combination of transmission electron microscopy techniques including high resolution imaging, EELS spectroscopy and 3D imaging. For the first time, we provide direct information on the 3D architecture within such complex glasses containing SiC nanograins, silica-rich and carbon nanodomains. Their sizes and relative 3D distribution have been precisely quantified. It was shown that the SiC nanocrystals and the silica-rich domains exhibit different types of connectivities with the graphitic carbon network. A direct evidence of the existence of “covalent” bridges between the edges of graphitic nanoplatelets and the SiC nanocrystals is provided. In addition, it was demonstrated that the silica rich domains are not covalently bonded to the graphitic platelets. As a consequence, this amorphous phase can be dissolved into HF and may generate a bimodal porosity, in strong relationship with the initial nanostructure of the SiBOC glass specimen.

Published
2019

4. Alkoxysilane effect in hybrid material: A comparison of pHEMA-TiO2 and pMAPTMS-TiO2 nanoparticulate hybrids

Author

François Ribot, Andrei Kanaev, Arseniy I. Kuznetsov, Laurence Rozes, A.P. Diaz-Gomez, Mamadou Kaba Traoré, Pavlo Gorbovyi, Boris N. Chichkov, Clément Sanchez, Luc Museur, Laboratoire d'Ingénierie des Matériaux et des Hautes Pressions (LIMHP), Centre National de la Recherche Scientifique (CNRS)-Institut Galilée-Université Paris 13 (UP13), Laboratoire des Sciences des Procédés et des Matériaux (LSPM), Université Paris 13 (UP13)-Institut Galilée-Université Sorbonne Paris Cité (USPC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Lasers (LPL), Université Paris 13 (UP13)-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), Matériaux Hybrides et Procédés (LCMCP-MHP ), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), 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), Novel Advanced Nano-Objects (LCMCP-NANO), and Laser Zentrum Hannover e.V. (LZH)

Subjects
Materials science, Mechanical Engineering, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Methacrylate, 01 natural sciences, 0104 chemical sciences, [SPI]Engineering Sciences [physics], Hydrolysis, Chemical engineering, Photoinduced charge separation, Polymerization, Mechanics of Materials, [CHIM]Chemical Sciences, Molecule, General Materials Science, Quantum efficiency, 0210 nano-technology, Hybrid material, ComputingMilieux_MISCELLANEOUS
Abstract

We report on a comparative study of photonic sensitivities of organic-inorganic hybrids prepared with size-selected 5 nm titanium-oxo-alkoxo nanoparticles and two different organic phases: HEMA (2-hydroxyethyl methacrylate) and MAPTMS (3-methacryloxypropyltrimethoxysilane). After organic polymerization, the obtained pHEMA-TiO2 and pMAPTMS-TiO2 hybrids are solids with different inter-component bindings. While surface exchange fixes organic (HEMA than pHEMA) groups on the nanoparticle surface, the titanium-oxo-alkoxo nanoparticles do not interact with the organic component in the pMAPTMS-TiO2 hydrid. Indeed, MAPTMS molecules are hydrolyzed forming condensed Si O Si species. The formation of Si O Ti bonds is observed at the organic thermal polymerization stage, which may be a signature of the silica layer formation at the particles surface. Consequently, the quantum efficiency of the photoinduced charge separation and storage in pMAPTMS-TiO2 hybrids is found considerably lower compared to that in pHEMA-TiO2 hybrids. The 3D micro-structuring of the hybrid solutions has been realized using 2-photon laser polymerization. The structures were mechanically more stable and easier to achieve in pMAPTMS-TiO2 compared to pHEMA-TiO2. Moreover, higher density of the photoinduced electrons decreases the damage threshold in the pHEMA-TiO2 hybrids.

Published
2019

5. Correlative Microscopy Insight on Electrodeposited Ultrathin Graphite Oxide Films

Author

Nathaly Ortiz Peña, Stefan Stanescu, Dris Ihiawakrim, David Portehault, Ovidiu Ersen, Mircea V. Rastei, Clément Sanchez, Vincent Ball, 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), Faculté de chirurgie dentaire - Strasbourg, Université de Strasbourg (UNISTRA), 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
Materials science, Graphite oxide, 02 engineering and technology, Electronic structure, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, 0104 chemical sciences, Electrochemical cell, chemistry.chemical_compound, Chemical engineering, chemistry, Transmission electron microscopy, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Microscopy, General Materials Science, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], Physical and Theoretical Chemistry, 0210 nano-technology, Spectroscopy, ComputingMilieux_MISCELLANEOUS, Nanosheet
Abstract

Here, we present a correlative microscopic analysis of electrodeposited films from catechol solutions in aqueous electrolytes. The films were prepared in a miniaturized electrochemical cell and were analyzed by identical location transmission electron microscopy, scanning transmission X-ray microscopy, and atomic force microscopy. Thanks to this combined approach, we have shown that the electrodeposited films are constituted of ultrathin graphite oxide nanosheets. Detailed information about the electronic structure of the films was obtained by X-ray absorption near edge structure spectroscopy. These results show the large potential of soft electrochemical conditions for the bottom-up production of ultrathin graphite oxide nanosheet films via a one-pot green chemistry approach from simple organic building blocks.

Published
2020

6. Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction

Author

Ovidiu Ersen, Ram Kumar, Mounib Bahri, Christel Laberty-Robert, Cyril Thomas, Yang Song, David Portehault, Francisco Gonell, Clément Sanchez, Portehault, David, 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), 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), 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), Chaire Chimie des matériaux hybrides, Reactive Materials for Electrochemical Systems (LCMCP-RMES ), 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
[PHYS]Physics [physics], chemistry.chemical_classification, [CHIM.MATE] Chemical Sciences/Material chemistry, Materials science, Oxygen evolution, Intermetallic, chemistry.chemical_element, Salt (chemistry), [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrocatalyst, 01 natural sciences, [PHYS] Physics [physics], 0104 chemical sciences, Sodium silicide, chemistry.chemical_compound, Nickel, chemistry, Chemical engineering, General Materials Science, Iridium, 0210 nano-technology, Eutectic system
Abstract

International audience; We report phase selective synthesis of intermetallic nickel silicide nanocrystals in inorganic molten salts. NiSi and Ni2Si nanocrystals are obtained by reacting a nickel (II) salt and sodium silicide Na4Si4 in the molten LiI-KI inorganic eutectic salt mixture. We report that nickel silicide nanocrystals are precursors to active electrocatalysts in the oxygen evolution reaction (OER) and may be low-cost alternatives to iridium-based electrocatalysts.

Published
2020

7. Origin of transparency in scattering biomimetic collagen materials

Author

Flore Salviat, Milena Lama, Nadine Nassif, Clément Sanchez, Marco Faustini, Marc Robin, Jean-Marie Chassot, Rémi Carminati, Elodie Moulongui, Arnaud Bardouil, Mohamed Selmane, Yan Wang, Marie-Madeleine Giraud-Guille, Alba Marcellan, Elora Bessot, Chrystelle Salameh, Franck Artzner, Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), 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), ILL, Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Institut des matériaux de Paris-Centre (IMPC), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sciences et Ingénierie de la Matière Molle (UMR 7615) (SIMM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Langevin - Ondes et Images (UMR7587) (IL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Collège de France (CdF)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ESPCI ParisTech, Ecole Nationale Supérieure de Chimie de Paris- Chimie ParisTech-PSL (ENSCP)-ESPCI ParisTech-Sorbonne Université (SU), Sciences et Ingénierie de la Matière Molle (SIMM), PSL Research University (PSL)-Sorbonne Université (SU)-ESPCI ParisTech-Centre National de la Recherche Scientifique (CNRS), 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), Matériaux Hybrides et Procédés (LCMCP-MHP ), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), 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), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Novel Advanced Nano-Objects (LCMCP-NANO), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)

Subjects
collagen, Materials science, [SDV]Life Sciences [q-bio], [PHYS.PHYS.PHYS-BIO-PH]Physics [physics]/Physics [physics]/Biological Physics [physics.bio-ph], Fibrillar Collagens, 02 engineering and technology, mechanical properties, 010402 general chemistry, 01 natural sciences, Light scattering, Photonic metamaterial, Cornea, Biomimetic Materials, Biomimetics, Phase (matter), Animals, Transparency (data compression), Microscale chemistry, Phase diagram, transparency, [PHYS]Physics [physics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Multidisciplinary, Scattering, self-assembly, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, photonic materials, 0104 chemical sciences, Order (biology), [CHIM.POLY]Chemical Sciences/Polymers, Chemical physics, Physical Sciences, [PHYS.PHYS.PHYS-MED-PH]Physics [physics]/Physics [physics]/Medical Physics [physics.med-ph], [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], 0210 nano-technology
Abstract

International audience; Living tissues, heterogeneous at the microscale, usually scatter light. Strong scattering is responsible for the whiteness of bones, teeth, and brain and is known to limit severely the performances of biomedical optical imaging. Transparency is also found within collagen-based extracellular tissues such as decalcified ivory, fish scales, or cornea. However, its physical origin is still poorly understood. Here, we unveil the presence of a gap of transparency in scattering fibrillar collagen matrices within a narrow range of concentration in the phase diagram. This precholesteric phase presents a three-dimensional (3D) orientational order biomimetic of that in natural tissues. By quantitatively studying the relation between the 3D fibrillar network and the optical and mechanical properties of the macroscopic matrices, we show that transparency results from structural partial order inhibiting light scattering, while preserving mechanical stability, stiffness, and nonlinearity. The striking similarities between synthetic and natural materials provide insights for better understanding the occurring transparency.

Published
2020

8. Following in Situ the Degradation of Mesoporous Silica in Biorelevant Conditions: At Last, a Good Comprehension of the Structure Influence

Author

Zeinab Chehadi, Corinne Chanéac, David Grosso, Omar Azzaroni, Clément Sanchez, Cédric Boissière, Pierre-Antoine Albouy, Marco Faustini, Andrea Cattoni, Elisa Bindini, 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 Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des Solides (LPS), 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), Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas [La Plata] (INIFTA), Facultad de Ciencias Exactas [La Plata], Universidad Nacional de la Plata [Argentine] (UNLP)-Universidad Nacional de la Plata [Argentine] (UNLP), Matériaux Hybrides et Procédés (LCMCP-MHP ), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), 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), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), and Novel Advanced Nano-Objects (LCMCP-NANO)

Subjects
In situ, Materials science, Nanoparticle, Nanotechnology, 02 engineering and technology, therapeutic vectors, 010402 general chemistry, 01 natural sciences, dissolution kinetic, Drug Delivery Systems, Ellipsometry, [CHIM]Chemical Sciences, Humans, General Materials Science, mesoporous silica, Porosity, Drug Carriers, High loading, Proteins, Mesoporous silica, 021001 nanoscience & nanotechnology, Silicon Dioxide, 0104 chemical sciences, Drug Liberation, Kinetics, Drug delivery, Degradation (geology), Nanoparticles, 0210 nano-technology, protein, ellipsometry
Abstract

International audience; Mesoporous silica nanoparticles (MSNs) have seen a fast development as drug delivery carriers thanks to their tunable porosity and high loading capacity. The employ of MSNs in biomedical applications requires a good understanding of their degradation behavior both to control drug release and to assess possible toxicity issues on human health. In this work, we study mesoporous silica degradation in biologically relevant conditions through in situ ellipsometry on model mesoporous nanoparticle or continuous thin films, in buffer solution and in media containing proteins. In order to shed light on the structure/dissolution relationship, we performed dissolution experiments far from soluble silicate species saturation. Via a complete decorrelation of dissolution and diffusion contributions, we proved unambiguously that surface area of silica vectors is the main parameter influencing dissolution kinetics, while thermal treatment and open mesoporous network architecture have a minor impact. As a logical consequence of our dissolution model, we proved that the dissolution lag-time can be promoted by selective blocking of the mesopores that limits the access to the mesoporous internal surface. This study was broadened by studying the impact of the organosilanes in the silica structure, of the presence of residual structuring agents, and of the chemical composition of the dissolution medium. The presence of albumin at blood concentration was found affecting drastically the dissolution kinetics of the mesoporous structure, acting as a diffusion barrier. Globally, we could identify the main factors affecting mesoporous silica materials degradation and proved that we can tune their structure and composition for adjusting dissolution kinetics in order to achieve efficient drug delivery.

Published
2020

9. Multicationic Sr4Mn3O10 mesostructures: molten salt synthesis, analytical electron microscopy study and reactivity

Author

Irma N. González-Jiménez, Juan C. Hernández-Garrido, Christel Laberty-Robert, David Portehault, Clément Sanchez, Miguel López-Haro, Almudena Torres-Pardo, José M. González-Calbet, Marina Parras, Simon Rano, José J. Calvino, Aurea Varela, Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), 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), Reactive Materials for Electrochemical Systems (LCMCP-RMES ), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), 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), Universidad de Cádiz (UCA), and Novel Advanced Nano-Objects (LCMCP-NANO)

Subjects
Materials science, Nanostructure, Process Chemistry and Technology, Electron energy loss spectroscopy, 02 engineering and technology, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Surface energy, 0104 chemical sciences, chemistry.chemical_compound, Electron tomography, chemistry, Chemical engineering, Mechanics of Materials, Transmission electron microscopy, Strontium hydroxide, General Materials Science, Surface charge, Electrical and Electronic Engineering, Molten salt, 0210 nano-technology
Abstract

International audience; Inorganic molten salts are known as fluxes for the synthesis of novel bulk inorganic compounds and of mesostructures and nanostructures with crystal habits different from those observed in more conventional solvents. However, they have not demonstrated the ability to provide mesostructures and nanostructures of complex metal oxides that are currently unreported at the mesoscale and nanoscale. In this report, we show the first occurrence of Sr4Mn3O10 at the mesoscale, as platelets synthesized in molten strontium hydroxide at 600 °C with basal faces of few hundreds of nanometers and thicknesses ranging from 20 to 100 nm. We address carefully the atom-scale structure by transmission electron microscopy, including electron energy loss spectroscopy and electron tomography. We then propose that the final morphology is driven by the surface charge of each facet through surface energy. The reactivity of these platelets is then addressed, highlighting cation leaching when in contact with acidic water, which results in crystalline–amorphous core–shell platelets that are active electrocatalysts towards the oxygen reduction reaction.

Published
2018

10. In situ insight into the unconventional ruthenium catalyzed growth of carbon nanostructures

Author

Ch. Hirlimann, Damien P. Debecker, Kassiogé Dembélé, Ovidiu Ersen, Capucine Sassoye, Simona Moldovan, Clément Sanchez, Mounib Bahri, 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), 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), Institut de la matière condensée et des nanosciences / Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain = Catholic University of Louvain (UCL), Groupe de physique des matériaux (GPM), Centre National de la Recherche Scientifique (CNRS)-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)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Institute for Advanced Study (USIAS), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), ANR-15-CE09-0009,3DCLEAN,Tri-Dimensionnel Nano-laboratoire catalytique environnemental(2015), 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), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-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)-Institut de Recherche sur les Matériaux Avancés (IRMA), 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)-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)-Université de Caen Normandie (UNICAEN), 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), Institut d’Etudes Avancées de l’Université de Strasbourg - Institute for Advanced Study (USIAS), and Université de Strasbourg (UNISTRA)

Subjects
Nanotube, Materials science, Hydrogen, chemistry.chemical_element, Nanoparticle, [CHIM.CATA]Chemical Sciences/Catalysis, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Ruthenium, chemistry, Chemical engineering, Particle, General Materials Science, Particle size, 0210 nano-technology, Carbon, Syngas
Abstract

International audience; We report on the in situ analysis of the growth process of carbon nanostructures catalyzed by Ru nanoparticles using syngas, a mixture of hydrogen and CO, as the carbon source at a medium temperature (500 °C). The structural modifications of the dual nanotube/nanoparticle system and the general dynamics of the involved processes have been directly followed during the growth, in real time and at the atomic scale, by transmission electron microscopy in an environmental gas cell at atmospheric pressure. After a reduction step under hydrogen and syngas, the particles became very active for the carbon growth. The growth rate is independent of the particle size which mainly influences the nanotube wall thickness. Other subtle information on the general behavior of the system has been obtained, as for instance the fact that the regular changes in the direction of the particle originate generally from the particle shape fluctuation. The main result is the evidence of a new growth mode in relation to the presence and the high instability of the ruthenium carbide phase which acts as a carbon reservoir. For the first time, a relaxation oscillation of the growth rate has been observed and correlated with the metal–carbide structural transition at the particle sub-surface.

Published
2018

11. Aerosol processing: a wind of innovation in the field of advanced heterogeneous catalysts

Author

Damien P. Debecker, Alexandra Chaumonnot, Solène Le Bras, Clément Sanchez, Cédric Boissière, Université Catholique de Louvain = Catholic University of Louvain (UCL), 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), IFP Energies nouvelles (IFPEN), and Chaire Chimie des matériaux hybrides

Subjects
Materials science, Nanoparticle, Nanotechnology, [CHIM.CATA]Chemical Sciences/Catalysis, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 0104 chemical sciences, Catalysis, Nanomaterials, Aerosol, Suspension (chemistry), Methanation, Spray drying, [CHIM]Chemical Sciences, 0210 nano-technology, Porosity
Abstract

International audience; Aerosol processing is long known and implemented industrially to obtain various types of divided materials and nanomaterials. The atomisation of a liquid solution or suspension produces a mist of aerosol droplets which can then be transformed via a diversity of processes including spray-drying, spray pyrolysis, flame spray pyrolysis, thermal decomposition, micronisation, gas atomisation, etc. The attractive technical features of these aerosol processes make them highly interesting for the continuous, large scale, and tailored production of heterogeneous catalysts. Indeed, during aerosol processing, each liquid droplet undergoes well-controlled physical and chemical transformations, allowing for example to dry and aggregate pre-existing solid particles or to synthesise new micro- or nanoparticles from mixtures of molecular or colloidal precursors. In the last two decades, more advanced reactive aerosol processes have emerged as innovative means to synthesise tailored-made nanomaterials with tunable surface properties, textures, compositions, etc. In particular, the “aerosol-assisted sol–gel” process (AASG) has demonstrated tremendous potential for the preparation of high-performance heterogeneous catalysts. The method is mainly based on the low-cost, scalable, and environmentally benign sol–gel chemistry process, often coupled with the evaporation-induced self-assembly (EISA) concept. It allows producing micronic or submicronic, inorganic or hybrid organic–inorganic particles bearing tuneable and calibrated porous structures at different scales. In addition, pre-formed nanoparticles can be easily incorporated or formed in a “one-pot” bottom-up approach within the porous inorganic or hybrid spheres produced by such spray drying method. Thus, multifunctional catalysts with tailored catalytic activities can be prepared in a relatively simple way. This account is an overview of aerosol processed heterogeneous catalysts which demonstrated interesting performance in various relevant chemical reactions like isomerisation, hydrogenation, olefin metathesis, pollutant total oxidation, selective oxidation, CO2 methanation, etc. A short survey of patents and industrial applications is also presented. Our objective is to demonstrate the tremendous possibilities offered by the coupling between bottom up synthesis routes and these aerosol processing technologies which will most probably represent a major route of innovation in the mushrooming field of catalyst preparation research.

Published
2018

12. Hierarchically porous materials: synthesis strategies and structure design

Author

Bao-Lian Su, Joanna C. Rooke, Xiao-Yu Yang, Li-Hua Chen, Clément Sanchez, Yu Li, State key Laboratory of Advanced Technology for Materials Synthesis and Processing, WUHAN UNIVERSITY OF TECHNOLOGY, Université de Namur [Namur] (UNamur), 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), University of Cambridge [UK] (CAM), and Wuhan University of Technology (WHUT)

Subjects
chemistry.chemical_classification, Materials science, Synthesis methods, Large series, Nanotechnology, 02 engineering and technology, General Chemistry, Polymer, Colloidal crystal, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, chemistry, Structure design, [CHIM]Chemical Sciences, 0210 nano-technology, Porous medium, Porosity
Abstract

Owing to their immense potential in energy conversion and storage, catalysis, photocatalysis, adsorption, separation and life science applications, significant interest has been devoted to the design and synthesis of hierarchically porous materials. The hierarchy of materials on porosity, structural, morphological, and component levels is key for high performance in all kinds of applications. Synthesis and applications of hierarchically structured porous materials have become a rapidly evolving field of current interest. A large series of synthesis methods have been developed. This review addresses recent advances made in studies of this topic. After identifying the advantages and problems of natural hierarchically porous materials, synthetic hierarchically porous materials are presented. The synthesis strategies used to prepare hierarchically porous materials are first introduced and the features of synthesis and the resulting structures are presented using a series of examples. These involve templating methods (surfactant templating, nanocasting, macroporous polymer templating, colloidal crystal templating and bioinspired process, i.e. biotemplating), conventional techniques (supercritical fluids, emulsion, freeze-drying, breath figures, selective leaching, phase separation, zeolitization process, and replication) and basic methods (sol-gel controlling and post-treatment), as well as self-formation phenomenon of porous hierarchy. A series of detailed examples are given to show methods for the synthesis of hierarchically porous structures with various chemical compositions (dual porosities: micro-micropores, micro-mesopores, micro-macropores, meso-mesopores, meso-macropores, multiple porosities: micro-meso-macropores and meso-meso-macropores). We hope that this review will be helpful for those entering the field and also for those in the field who want quick access to helpful reference information about the synthesis of new hierarchically porous materials and methods to control their structure and morphology.

Published
2017

13. Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Author

Glenna L. Drisko, Bejoy Thomas, Audrey Moores, Rubiyah M. H, Clément Sanchez, Midhun C. Raj, Athira K. B, Jithin Joy, Department of Chemistry, Newman College, Newman College, International and Interuniversity Centre for Nanoscience and Nanotechnology (IIUCNN), Mahatma Gandhi University, Department of Chemistry, McGill University, Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), 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), Chaire Chimie des matériaux hybrides, financial support from the University Grants Commission, Government of India, through the UGC Major Research Project (No. F. No. 42-300/2013 (SR)., and ANR-10-IDEX-0003,IDEX BORDEAUX,Initiative d'excellence de l'Université de Bordeaux(2010)

Subjects
Chemistry, Biomass, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 0104 chemical sciences, Nanocellulose, Green materials, Isolation techniques, [CHIM]Chemical Sciences, Surface modification, 0210 nano-technology
Abstract

International audience; With increasing environmental and ecological concerns due to the use of petroleum-based chemicals and products, the synthesis of fine chemicals and functional materials from natural resources is of great public value. Nanocellulose may prove to be one of the most promising green materials of modern times due to its intrinsic properties, renewability, and abundance. In this review, we present nanocellulose-based materials from sourcing, synthesis, and surface modification of nanocellulose, to materials formation and applications. Nanocellulose can be sourced from biomass, plants, or bacteria, relying on fairly simple, scalable, and efficient isolation techniques. Mechanical, chemical, and enzymatic treatments, or a combination of these, can be used to extract nanocellulose from natural sources. The properties of nanocellulose are dependent on the source, the isolation technique, and potential subsequent surface transformations. Nanocellulose surface modification techniques are typically used to introduce either charged or hydrophobic moieties, and include amidation, esterification, etherification, silylation, polymerization, urethanization, sulfonation, and phosphorylation. Nanocellulose has excellent strength, high Young’s modulus, biocompatibility, and tunable self-assembly, thixotropic, and photonic properties, which are essential for the applications of this material. Nanocellulose participates in the fabrication of a large range of nanomaterials and nanocomposites, including those based on polymers, metals, metal oxides, and carbon. In particular, nanocellulose complements organic-based materials, where it imparts its mechanical properties to the composite. Nanocellulose is a promising material whenever material strength, flexibility, and/or specific nanostructuration are required. Applications include functional paper, optoelectronics, and antibacterial coatings, packaging, mechanically reinforced polymer composites, tissue scaffolds, drug delivery, biosensors, energy storage, catalysis, environmental remediation, and electrochemically controlled separation. Phosphorylated nanocellulose is a particularly interesting material, spanning a surprising set of applications in various dimensions including bone scaffolds, adsorbents, and flame retardants and as a support for the heterogenization of homogeneous catalysts.

Published
2018

14. Multifunctional core–shell hybrid nano-composites made using Pickering emulsions: a new design for therapeutic vectors

Author

Thomas Fontecave, Clément Sanchez, Cédric Boissière, Marc-André Fortin, Manon Bourbousson, Ana Espinosa, Claire Wilhelm, Corinne Chanéac, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS), Matériaux Hybrides et Nanomatériaux (MHN), Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes (MSC (UMR_7057)), Université Paris Diderot - Paris 7 (UPD7)-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), 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), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), and Matière et Systèmes Complexes (MSC)

Subjects
Chemistry, Nanoparticle, Nanotechnology, 02 engineering and technology, General Chemistry, Prodrug, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Catalysis, Pickering emulsion, 0104 chemical sciences, Ouzo effect, Covalent bond, Drug delivery, Emulsion, Materials Chemistry, [CHIM]Chemical Sciences, Molecule, 0210 nano-technology
Abstract

International audience; In this manuscript, we present a new strategy for the direct synthesis of functional nano-composite hybrid therapeutic vectors. The smart coupling of soft-chemistry and “ouzo effect” based emulsification processing allows us to create in a very simple way a Pickering stabilized emulsion from various prodrug modelling molecules used as a core, and subsequently embedded into a mesostructured silica shell. The resulting prodrug/Fe2O3/silica architecture offers a very good functionality/complexity ratio, realistic from a pharmaceutical development point of view at the industrial scale. While usual magnetic resonance imaging (MRI) contrast agent properties of maghemite nanoparticles are maintained, we proved for the first time that their smart localization at the organic/silica interface allows us to isolate them from phosphate anions of the surrounding environment, and thus to use their surface as a heterogeneous catalyst for controlled hydrolysis-mediated model drug delivery. This original hydrolysis-mediated release mechanism was investigated by grafting a model drug molecule via various covalent bonds. The release time can be tuned by this approach in between one hour and three days. In addition, magnetic radio frequency stimulation commonly used for hyperthermia treatment was able to accelerate the catalytic hydrolysis and release of the model drug by one order of magnitude, proving that drug release can be triggered on demand.

Published
2016

15. Self‐Assembled Collagen Microparticles by Aerosol as a Versatile Platform for Injectable Anisotropic Materials

Author

Cédric Boissière, Nadine Nassif, Sébastien Banzet, Marie-Madeleine Giraud-Guille, Francisco M. Fernandes, Jean-Jacques Lataillade, Alba Marcellan, Bernard Coulomb, Clément Sanchez, M. Grosbot, Marina Trouillas, Milena Lama, J. Peltzer, Matériaux et Biologie (LCMCP-MATBIO), 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), Sciences et Ingénierie de la Matière Molle (UMR 7615) (SIMM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Composantes innées de la réponse immunitaire et différenciation (CIRID), Université Bordeaux Segalen - Bordeaux 2-Centre National de la Recherche Scientifique (CNRS), Département des Facteurs Humains, Service de Santé des Armées-Ministère de la Défense, Chaire Chimie des matériaux hybrides, Paris-Centre de Recherche Cardiovasculaire (PARCC - UMR-S U970), Hôpital Européen Georges Pompidou [APHP] (HEGP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM), Matériaux Hybrides et Procédés (LCMCP-MHP ), Matériaux Hybrides et Nanomatériaux (LCMCP-MHN), 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), Collège de France (CdF)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sciences et Ingénierie de la Matière Molle (SIMM), ESPCI ParisTech-PSL Research University (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Paris Descartes - Paris 5 (UPD5)-Hôpital Européen Georges Pompidou [APHP] (HEGP), Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Hôpitaux Universitaires Paris Ouest - Hôpitaux Universitaires Île de France Ouest (HUPO)-Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Collège de France (CdF)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP)

Subjects
[SDV.BIO]Life Sciences [q-bio]/Biotechnology, [SDV]Life Sciences [q-bio], Gingiva, 02 engineering and technology, 010402 general chemistry, Fibril, 01 natural sciences, Self assembled, Biomaterials, Humans, [CHIM]Chemical Sciences, General Materials Science, Cells, Cultured, Aerosols, Tissue Scaffolds, Chemistry, Regeneration (biology), Mesenchymal stem cell, Mesenchymal Stem Cells, [CHIM.MATE]Chemical Sciences/Material chemistry, General Chemistry, 021001 nanoscience & nanotechnology, Extracellular Matrix, 0104 chemical sciences, [CHIM.POLY]Chemical Sciences/Polymers, Cell culture, Collagen molecule, Biophysics, [SDV.IB]Life Sciences [q-bio]/Bioengineering, Collagen, Self-assembly, 0210 nano-technology, Type I collagen, Biotechnology
Abstract

Extracellular matrices (ECM) rich in type I collagen exhibit characteristic anisotropic ultrastructures. Nevertheless, working in vitro with this biomacromolecule remains challenging. When processed, denaturation of the collagen molecule is easily induced in vitro avoiding proper fibril self-assembly and further hierarchical order. Here, an innovative approach enables the production of highly concentrated injectable collagen microparticles, based on collagen molecules self-assembly, thanks to the use of spray-drying process. The versatility of the process is shown by performing encapsulation of secretion products of gingival mesenchymal stem cells (gMSCs), which are chosen as a bioactive therapeutic product for their potential efficiency in stimulating the regeneration of a damaged ECM. The injection of collagen microparticles in a cell culture medium results in a locally organized fibrillar matrix. The efficiency of this approach for making easily handleable collagen microparticles for encapsulation and injection opens perspectives in active tissue regeneration and 3D bioprinted scaffolds.

Published
2019

16. Exploring physical and chemical properties in new multifunctional indium-, bismuth-, and zinc-based 1D and 2D coordination polymers

Author

R. Van Deun, Gervasio Gomez, Marta Iglesias, Galo J. A. A. Soler-Illia, Clément Sanchez, Lina María Aguirre-Díaz, Ramón A. Pizarro, Anna M. Kaczmarek, M. Spinosa, Diego F. Lionello, Miguel Monge, Richard F. D'Vries, Cristina S. Costa, María Cecilia Fuertes, Laurence Rozes, Javier Ellena, 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), and Chaire Chimie des matériaux hybrides

Subjects
Materials science, chemistry.chemical_element, 02 engineering and technology, Crystal structure, Zinc, INGENIERÍAS Y TECNOLOGÍAS, 010402 general chemistry, Química Inorgánica y Nuclear, 01 natural sciences, Bismuth, Inorganic Chemistry, [CHIM]Chemical Sciences, chemistry.chemical_classification, Nanotecnología, CATALYSIS, Ciencias Químicas, Polymer, Nanoindentation, 021001 nanoscience & nanotechnology, Nano-materiales, 0104 chemical sciences, 3. Good health, chemistry, Chemical engineering, Main group element, MULTIFUNCTIONAL MATERIALS, Metal-organic framework, 0210 nano-technology, COORDINATION POLYMERS, Indium, MECHANICAL PROPERTIES, CIENCIAS NATURALES Y EXACTAS, CRISTALOGRAFIA FÍSICA (ESTRUTURA)
Abstract

Main group element coordination polymers (MGE-CPs) are important compounds for the development of multifunctional materials. However, there has been a shortage of studies regarding their structural, optical, catalytic, mechanical, and antibacterial properties. This work presents an exhaustive study of a set of crystalline MGE-CPs obtained from bismuth and indium metals and iminodiacetate, 1,2,4,5-benzenetetracarboxylate, and 2,2′-bipyridine as building blocks. An in-depth topological analysis of the networks was carried out. Additionally, nanoindentation studies were performed on two representative low-dimensional compounds in order to find the relationships between their structural features and their intrinsic mechanical properties (hardness and elasticity). The solid-state photoluminescence (SSPL) properties were also studied in terms of excitation, emission, lifetimes values, and CIE chromaticites. Moreover, the heterogeneous catalytic activities of the compounds were evaluated with the cyanosilylation reaction using a set of carbonylic substrates under solvent-free conditions. Finally, the inhibitory effect of the Bi-CPs on the growth of microorganisms such as Escherichia coli, Salmonella enterica serovar Typhimurium, and Pseudomonas aeruginosa, which are associated with relevant infectious diseases, is reported. Fil: Gomez, Germán Ernesto. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: D'Vries, R.F.. Universidad Santiago de Cali; Colombia. Universidade de Sao Paulo; Brasil Fil: Lionello, Diego Fernando. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina Fil: Aguirre Díaz, L.M.. Instituto de Ciencia de Materiales de Madrid; España Fil: Spinosa, M.. Comisión Nacional de Energía Atómica; Argentina Fil: Costa, C.S.. Comisión Nacional de Energía Atómica; Argentina Fil: Fuertes, María Cecilia. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pizarro, R.A.. Comisión Nacional de Energía Atómica; Argentina Fil: Kaczmarek, A.M.. University of Ghent; Bélgica Fil: Ellena, J.. Universidade de Sao Paulo; Brasil Fil: Rozes, L.. Centre National de la Recherche Scientifique; Francia Fil: Iglesias, M.. Instituto de Ciencia de Materiales de Madrid; España Fil: Van Deun, R.. University of Ghent; Bélgica Fil: Sanchez, C.. Centre National de la Recherche Scientifique; Francia Fil: Monge, M.A.. Instituto de Ciencia de Materiales de Madrid; España Fil: Soler Illia, Galo Juan de Avila Arturo. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina

Published
2018

17. Gold–silica quantum rattles for multimodal imaging and therapy

Author

Ciro Chiappini, Sergio Bertazzo, Olumide Ogunlade, Challa S. S. R. Kumar, Glenna L. Drisko, Mark F. Lythgoe, Molly M. Stevens, Katla Sai Krishna, Mathew Hembury, Paul C. Beard, Coline Jumeaux, Cédric Boissière, Clément Sanchez, Alexandra E. Porter, Tammy L. Kalber, Simon Walker-Samuel, The Royal Society, Commission of the European Communities, Engineering & Physical Science Research Council (EPSRC), Department of Materials, Imperial College London, 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), Engineering and Physical Sciences Research Council (EPSRC), Rosetrees Trust, Medical Research Council (MRC), Department of Health (DoH) (United Kingdom), UK Regenerative Medicine Platform Safety Hub [MRC: MR/K026739/1], European Union Project Functional Anatomical Molecular Optical Screening (FAMOS) (FP7 ICT) [317744], College de France, CNRS, EPSRC [EP/K020641/1], European Research Council starting grant [257182], US Department of Energy [DE-SC0001058, LEQSF (2008-10)-ENH-TR-07], EPSRC Early Career fellowship [EP/L006472/1], Wellcome Trust Senior Research fellowship [WT100247MA], King's College London, University College London (UCL) Comprehensive Cancer Imaging Centre Cancer Research UK (CR-UK), and EPSRC

Subjects
Physics::Optics, Nanoparticle, 02 engineering and technology, MAGNETISM, Multimodal Imaging, 01 natural sciences, chemistry.chemical_compound, NANOPARTICLES, Multidisciplinary, [CHIM.MATE]Chemical Sciences/Material chemistry, Silicon Dioxide, 021001 nanoscience & nanotechnology, nanomedicine, CANCER, TUMORS, 3. Good health, Multidisciplinary Sciences, Colloidal gold, Physical Sciences, Science & Technology - Other Topics, Nanomedicine, gold quantum dots, 0210 nano-technology, Materials science, Silicon dioxide, cancer nanotechnology, Nanotechnology, 010402 general chemistry, Nanoclusters, Microscopy, Electron, Transmission, Quantum Dots, MD Multidisciplinary, Humans, mesoporous silica, STRATEGY, FLUORESCENCE, Science & Technology, NANOCLUSTERS, hybrid nanoparticle, Phototherapy, Photothermal therapy, Mesoporous silica, equipment and supplies, 0104 chemical sciences, MODEL, chemistry, Quantum dot, Hela Cells, CELLS, Gold, CLUSTERS
Abstract

International audience; Gold quantum dots exhibit distinctive optical and magnetic behaviors compared with larger gold nanoparticles. However, their unfavorable interaction with living systems and lack of stability in aqueous solvents has so far prevented their adoption in biology and medicine. Here, a simple synthetic pathway integrates gold quantum dots within a mesoporous silica shell, alongside larger gold nanoparticles within the shell's central cavity. This ``quantum rattle'' structure is stable in aqueous solutions, does not elicit cell toxicity, preserves the attractive near-infrared photonics and paramagnetism of gold quantum dots, and enhances the drug-carrier performance of the silica shell. In vivo, the quantum rattles reduced tumor burden in a single course of photothermal therapy while coupling three complementary imaging modalities: near-infrared fluorescence, photoacoustic, and magnetic resonance imaging. The incorporation of gold within the quantum rattles significantly enhanced the drug-carrier performance of the silica shell. This innovative material design based on the mutually beneficial interaction of gold and silica introduces the use of gold quantum dots for imaging and therapeutic applications.

Published
2015

18. First acidic macro-mesocellular aluminosilicate monolithic foams 'SiAl(HIPE)' and their catalytic properties

Author

Cédric Boissière, Rénal Backov, Damien P. Debecker, Philippe Eliaers, Clément Sanchez, Guillaume Laurent, Stéphanie Huet, Institute of Condensed Matter and Nanosciences (ICMN), Université Catholique de Louvain = Catholic University of Louvain (UCL), 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), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre de Ressources Technologiques en Chimie (Certech), The French Région Ile de France SESAME program is acknowledged for financial support (700 MHz spectrometer)., and UCL - SST/IMCN/MOST - Molecules, Solids and Reactivity

Subjects
geography, geography.geographical_feature_category, Materials science, education, technology, industry, and agriculture, Metals and Alloys, Nanotechnology, [CHIM.CATA]Chemical Sciences/Catalysis, General Chemistry, Catalysis, Sial, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, High surface, Chemical engineering, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Aluminosilicate, Emulsion, Materials Chemistry, Ceramics and Composites, Mixed oxide, Monolith, Mesoporous material
Abstract

International audience; A new type of acidic macrocellular and mesoporous silica-alumina foam is obtained via a one pot alkaline sol-gel route coupled with a concentrated emulsion-based templating technique. The mixed oxide monolith exhibits high surface acidity, translating in excellent performance in the acid-catalyzed dehydration of bioethanol to ethene.

Published
2015

19. Integrative strategies to hybrid lamellar compounds: an integration challenge

Author

Francisco M. Fernandes, Clément Sanchez, H. Baradari, 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
Sol-gel, Chemistry, Synthesis methods, Integration, Geology, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Nanocomposites, 0104 chemical sciences, Geochemistry and Petrology, Layered materials, Intercalation, Lamellar structure, Inorganic materials, Hybrid materials, 0210 nano-technology, Hybrid material
Abstract

International audience; During the past decades, the potential derived from the hybridization of inorganic materials, has been widely studied and presented. The capability of tuning materials’ performances, not only in terms of tailoring their physico-chemical properties to answer prerequisites of a given application, but also regarding the elaboration of novel concepts, opened a door to a radical new world in materials science. However, as a consequence of their diverse chemistry, structure, envisaged applications and historical background, each subgroup of inorganic lamellar compounds were usually discussed separately. This review intends to reflect upon the different categories of lamellar compounds and their hybridization strategies, regardless of their chemical and historical differences. The hybridization strategies of lamellar compounds are divided and presented under two main categories. Firstly, the intercalation/exfoliation approach, where the hybridization of lamellar compounds is operated in pre-formed inorganic layered materials. Secondly, the in situ synthesis methods, where the hybrid character of the layered compound is imparted simultaneously along with the layered inorganic compounds synthesis routes. Finally, in order to tackle the important question of “the place and role of hybrid lamellar compounds in consumer end-products, an integration challenge”, the proven concepts and potential applications defined for these organic-inorganic compounds are discussed.

Published
2014

20. Water-Induced Phase Separation Forming Macrostructured Epitaxial Quartz Films on Silicon

Author

Adrian Carretero-Genevrier, Cédric Boissière, Djawhar Ferrah, Jaume Gazquez, Clément Sanchez, David Grosso, Glenna L. Drisko, Juan Rodríguez-Carvajal, 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 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), 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)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), College de France foundation, Marie Curie Reintegration Grant [PCIG09-GA-2011-294168], [RyC-2012-11709], 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), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay

Subjects
Materials science, Silicon, business.industry, Doping, chemistry.chemical_element, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, Condensed Matter Physics, Epitaxy, Piezoelectricity, Electronic, Optical and Magnetic Materials, law.invention, Biomaterials, Metal, Semiconductor, chemistry, Chemical engineering, law, visual_art, Electrochemistry, visual_art.visual_art_medium, Crystallization, business, Quartz
Abstract

International audience; Quartz has been widely used as a bulk material in optics, the microelectronic industry, and sensors. The nanostructuring and direct integration of oriented quartz crystals onto a semiconductor platform has proven to be challenging. However, here, a new approach is presented to integrate epitaxial quartz films with macroperforations within the range of 500 nm and 1 mu m using chemical solution deposition. This method constitutes an appealing approach to develop piezoelectric mass sensors with enhanced resonance frequencies due to the thickness reduction. Perforated quartz films on (100)-silicon are prepared from amorphous silica films deposited via dip-coating and doped with metal cations that catalyze quartz crystallization. The metal cations are also active in the formation of the macroperforations, which arise due to a phase separation mechanism. Cationic surfactant-anion-metal cation assemblies stabilize droplets of water, creating an indentation in the hydrophilic silica matrix which remains after solvent evaporation. Many cations induce phase separation, including Li+, Na+, Sr2+, Mn2+, Fe2+/Fe3+, Ca2+, Ce3+ and La3+ but only the Sr2+ and Ca2+ cations in this series induce the epitaxial growth of alpha-quartz films under the conditions studied. The combination of sol-gel chemistry and epitaxial growth opens new opportunities for the integration of patterned quartz on silicon.

Published
2014

21. Fast and continuous processing of a new sub-micronic lanthanide-based metal–organic framework

Author

Samuel Marre, Cyril Aymonier, Clément Sanchez, Jérôme Marrot, Capucine Sassoye, Laurence Rozes, Loïc D'Arras, 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 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), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), and Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB)

Subjects
Lanthanide, Nanostructure, Chemistry, chemistry.chemical_element, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, General Chemistry, Catalysis, Cerium, Phase (matter), Materials Chemistry, Metal-organic framework, Particle size, Hybrid material
Abstract

International audience; Processing strategies for the synthesis of hybrid materials stand as relevant ways to modulate the particle size and morphology. We present herein the use of a continuous high temperature-high pressure (HT-HP) process for the synthesis of a new cerium based metal-organic framework (MOF). The HT-HP harsh thermodynamic synthesis conditions lead to MOF nanostructures exhibiting the same phase as for microparticles obtained under conventional batch solvothermal conditions but in exceptional much shorter residence times, opening avenues towards production scaling-up. The HT-HP process also tailors down the size of the particles, which still presents a major issue for most MOF applications.

Published
2014

22. Mesoscopically structured nanocrystalline metal oxide thin films

Author

Adrian Carretero-Genevrier, Clément Sanchez, David Grosso, Cédric Boissière, Glenna L. Drisko, 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), College de France foundation, Solvay, and project PEPS Cellule Energie de l'INSIS-CNRS [1D-RENOX]

Subjects
Materials science, Nucleation, Oxide, [CHIM.MATE]Chemical Sciences/Material chemistry, Substrate (electronics), Nanocrystalline material, law.invention, Amorphous solid, chemistry.chemical_compound, Crystallography, chemistry, Chemical engineering, law, General Materials Science, Crystallite, Crystallization, Thin film
Abstract

International audience; This review describes the main successful strategies that are used to grow mesostructured nanocrystalline metal oxide and SiO2 films via deposition of sol-gel derived solutions. In addition to the typical physicochemical forces to be considered during crystallization, mesoporous thin films are also affected by the substrate-film relationship and the mesostructure. The substrate can influence the crystallization temperature and the obtained crystallographic orientation due to the interfacial energies and the lattice mismatch. The mesostructure can influence the crystallite orientation, and affects nucleation and growth behavior due to the wall thickness and pore curvature. Three main methods are presented and discussed: templated mesoporosity followed by thermally induced crystallization, mesostructuration of already crystallized metal oxide nanobuilding units and substrate-directed crystallization with an emphasis on very recent results concerning epitaxially grown piezoelectric structured a-quartz films via crystallization of amorphous structured SiO2 thin films.

Published
2014

23. Aerosol Route to Highly Efficient (Co)Mo/SiO2Mesoporous Catalysts

Author

Audrey Bonduelle, Frederic Colbeau-Justin, Alexandra Chaumonnot, Cédric Boissière, Clément Sanchez, 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), and IFP Energies nouvelles (IFPEN)

Subjects
inorganic chemicals, Materials science, Inorganic chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, Condensed Matter Physics, Evaporation (deposition), Electronic, Optical and Magnetic Materials, Catalysis, Aerosol, Biomaterials, Chemical engineering, Active phase, Spray drying, Electrochemistry, High activity, Mesoporous material
Abstract

International audience; One-pot aerosol-assisted synthesis of mesostructured (Co)Mo/SiO2 catalysts with high hydrogenation activity is reported. The evaporation*induced self-assembly mechanism of the formation of such catalysts enables optimized interactions between each component, resulting in the tuning of localization of the active species. The high activity is probably associated with the original morphology of the active phase as well as the creation of relevant defects in its structure. Since spray-dried mesoporous CoMo/SiO2 catalysts outperform the hydrogenation activity of classical impregnated catalysts, aerosol route appears to be a promising way for the industrial-scale preparation of new highly efficient hydrocarbons catalysts.

Published
2013

24. 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

25. 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

26. 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

27. 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

28. 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

29. 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

30. 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

31. 25th anniversary article: exploring nanoscaled matter from speciation to phase diagrams: metal phosphide nanoparticles as a case of study

Author

David Portehault, Clément Sanchez, Cédric Boissière, Sophie Carenco, Nicolas Mézailles, 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), Laboratoire Hétéroéléments et Coordination (DCPH), École polytechnique (X)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), CNRS, College de France, Ecole Polytechnique, and UPMC

Subjects
Materials science, Phosphide, Mechanical Engineering, Nanoparticle, Nanotechnology, nanoscale, [CHIM.MATE]Chemical Sciences/Material chemistry, Nanomaterials, Metal, chemistry.chemical_compound, chemistry, speciation, Mechanics of Materials, surface energy, Phase (matter), visual_art, Genetic algorithm, visual_art.visual_art_medium, metal phosphide, General Materials Science, phase diagrams, Phase diagram
Abstract

International audience; The notions of nanoscale phase speciation and phase diagram are defined and discussed in terms of kinetic and thermodynamic controls, based on the case of metal phosphide nanoparticles. After an overview of the most successful synthetic routes for these exotic nanomaterials, the cases of InP, Ni2P, Ni12P5 and PdxPy are discussed in detail to highlight the relationship between composition, structure, and size at the nanoscale. The influence of morphology is discussed next by comparing the behavior of Cu3P nanophases with those of NixPy, FeP/Fe2P, and CoP/Co2P. Perspectives provide the reader with methodological guidelines for further investigation of nanoscale phase diagrams, and their use for optimized synthesis of new functional nanomaterials.

Published
2013

32. Soft-chemistry-based routes to epitaxial α-quartz thin films with tunable textures

Author

Glenna L. Drisko, Clément Sanchez, Laura Picas, Adrian Carretero-Genevrier, Jaume Gazquez, Cédric Boissière, Juan Rodríguez-Carvajal, Martí Gich, David Grosso, 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), Institut Laue-Langevin (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), COMPHOSOL2 (Fond Unique Interministeriel dans le cadre du 9eme AAP), IMPC, College de France Fondation, Beatriu de Pinos, Foundation Pierre-Gilles de Gennes, Marie Curie Reintegration [PCIG09-GA-2011-294168], Spanish Government [MAT2012-35324, CONSOLIDER-Nanoselect-CSD2007-00041, RyC-2009-04335], Spanish Government (JAE-CSIC), Oak Ridge National Laboratory, Scientific User Facility Division, Office of Basic Energy Sciences, U.S. Department of Energy, 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
Multidisciplinary, Materials science, Nanostructure, Silicon, chemistry.chemical_element, Nanotechnology, Crystal growth, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, law.invention, chemistry, Chemical engineering, law, Crystallite, Crystallization, Thin film, 0210 nano-technology, Crystal twinning, Quartz
Abstract

Fabricating Quartz Quartz is used industrially as an abrasive, as an inert glassy material, or for high-quality crystals in microelectronics. It is also valued for its piezoelectronic properties. However, it is hard to grow quartz as a patterned material or to integrate it into nanostructured devices. Carretero-Genevrier et al. (p. 827 ; see the Perspective by Brinker and Clem ) have developed a method for preparing oriented epitaxial thin films of polycrystalline α-quartz on single-crystal silicon substrates using ambient pressure and temperatures below 1000°C. Different processing conditions can be used to fabricate quartz films with a variety of pore sizes or as a dense nonporous α-quartz film.

Published
2013

33. Molecular and supramolecular dynamics of hybrid organic-inorganic interfaces for the rational construction of advanced hybrid nanomaterials

Author

François Ribot, David Grosso, Clément Sanchez, Cédric Boissière, 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), Novel Advanced Nano-Objects (LCMCP-NANO), 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), and Chaire Chimie des matériaux hybrides

Subjects
Chemistry, Supramolecular chemistry, Nanoparticle, Nanotechnology, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, General Chemistry, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Nanomaterials, Characterization (materials science), Organic inorganic, Soft matter, 0210 nano-technology, Pulsed field gradient, Hybrid material, ComputingMilieux_MISCELLANEOUS
Abstract

Today the capability to rationally design and construct hybrid materials utilizing a performance-property driven methodology is strongly dependent on our ability to control the structure and the dynamics of hybrid interfaces. This control needs a deep knowledge of their molecular and supramolecular dynamics that must be evaluated in situ, in the soft matter or colloidal states. For this purpose the use of modern methodologies of characterization such as time resolved synchrotron experiments and advanced pulsed field gradient NMR methods (DOSY) is particularly relevant. In this critical review, two important examples are discussed. They concern, first, the study of surface capping organic components' affinity towards nanoparticle surfaces by DOSY NMR. The knowledge and therefore the tuning of this affinity is paramount because it controls solubility, transferability and stability of colloidal dispersions of nanoparticles (NPs). In the second part, the mechanism of micellar templated formation of hybrid mesophases will be discussed in the frame of the main results obtained via in situ SAXS (107 references).

Published
2010

34. Nanocrystalline N-doped ceria porous thin films as efficient visible-active photocatalysts

Author

Guillaume Sauthier, Yoshiaki Sakatani, A. Belen Jorge, Amparo Fuertes, Christel Laberty-Roberts, Cédric Boissière, Clément Sanchez, Jordi Fraxedas, Institut de Ciència de Materials de Barcelona (ICMAB), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), 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), and Ministerio de Ciencia e Innovacion, Spain [MAT2008-04587]

Subjects
Materials science, Inorganic chemistry, chemistry.chemical_element, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Nanocrystalline material, 0104 chemical sciences, law.invention, Cerium, X-ray photoelectron spectroscopy, chemistry, Chemical engineering, law, Materials Chemistry, Photocatalysis, Crystallization, 0210 nano-technology, Porosity, Nitriding, Visible spectrum
Abstract

Nanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH 3 gas between 550 and 700 °C at flow rates of 270 and 670 cm 3 min -1. The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample treated at 600 °C and NH 3 flow rate of 670 cm 3 min -1. Nitrogen bonding to cerium is proved by XPS, through the observation of the characteristic Ce-N feature at ∿397 eV. Microstructural characterization shows that the mesostructure of the films is lost for treatment temperatures in ammonia higher than 550 °C but the porous fraction remains between 35 and 40% after ammonolysis for all the samples. The nitrided films show photocatalytic activity under visible light in the acetaldehyde decomposition, with the best results obtained for the films treated at 550 °C under NH 3 flow rate of 670 cm 3 min -1. © 2012 The Royal Society of Chemistry.

Published
2012

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