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6 results on '"M. Tabellout"'

1. Polyaniline based composite layers for photovoltaïc applications: Thermal and optical properties investigation

Author

Jean-François Bardeau, Jean-François Pilard, Douniazad Mezdour, M. Tabellout, Nicolas Errien, Institut des Molécules et Matériaux du Mans (IMMM), and Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Thermogravimetric analysis, Materials science, Absorption spectroscopy, Polyaniline, Composite number, 02 engineering and technology, 010402 general chemistry, 7. Clean energy, 01 natural sciences, [SPI.MAT]Engineering Sciences [physics]/Materials, chemistry.chemical_compound, Differential scanning calorimetry, Thermal, Absorption (electromagnetic radiation), Polymer, Polystyrene, Optical properties, 021001 nanoscience & nanotechnology, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], 0104 chemical sciences, chemistry, Chemical engineering, Polymerization, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], 0210 nano-technology
Abstract

International audience; This paper reports on the synthesis and physical properties of conducting composites based on polyaniline and polystyrene. Polyaniline composite powders are synthesized by oxidative polymerization in an acidic medium. Thermal properties are characterized by thermo gravimetric analysis and differential scanning calorimetry. UV-Visible absorption spectroscopy is also used to study the optical properties of the deposited films. The optical gap decreases from 4.6 eV to 2.7 eV with increasing polyaniline content from 0.5 to 5 wt. % confirming the improvement of the semi-conductive properties. Due to the absorption properties in near infrared of the thin composite layers they can be promising materials for optoelectronic and photovoltaic applications.

Published
2019
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2. Enhanced Piezoelectric Response in Nanostructured Ni/PVDF Films

Author

Doaré O, Didier Lairez, D. Gorse, Bechelany M, M Tabellout, Jean-Eric Wegrowe, Mary-Claude Clochard, Oral O, Giuseppe Melilli, Galifanova A, Emmanuel Balanzat, Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Le Mans Université (UM), 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), Laboratoire Léon Brillouin (LLB - UMR 12), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), 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), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), École Nationale Supérieure de Techniques Avancées (ENSTA Paris), and Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
0209 industrial biotechnology, Materials science, Nanostructure, Track-etching, Composite number, Nanowire, chemistry.chemical_element, Composite, 02 engineering and technology, Bending, 7. Clean energy, Swift heavy ion irradiation, 020901 industrial engineering & automation, [CHIM]Chemical Sciences, Irradiation, Composite material, Piezoelectric polymer, Nanowires, 021001 nanoscience & nanotechnology, Piezoelectricity, Nickel, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, Electrode, 0210 nano-technology, Nanostructuration
Abstract

International audience; Poly(vinylidene fluoride) (PVDF) composites have recently emerged as excellent candidates to fabricate flexible and small piezoelectric generators for portable devices. Among various techniques used to nanostructure polarized PVDF, the track-etching represents a new route for manufacturing nanostructured composite thin films. The moderate influence of irradiation on the piezoelectric response of polarized PVDF makes possible the use of this technique. In this way, a nanostructured composite based on polarized thin PVDF films comprising embedded nickel nanowires (Ni NWs) was fabricated. The nanostructured PVDF/Ni NWs composites were tested under bending conditions using a homemade pressure cell. Due to the presence of NWs, an increase of five-fold the initial dielectric permittivity, in the low-frequency range, was observed. It suggested the presence of an interfacial polarization at the PVDF/Ni interface. With respect to the etched PVDF, the nanostructured PVDF/Ni NWs composites exhibited a non-negligible enhancement by 2.5 times the piezoelectric efficiency. This result was attributed to the increased Au/Ni NWs electrode surface.

Published
2018
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3. High Energy Ball-Milling Synthesis of Nanostructured Ag-Doped and BiVO 4 -Based Photocatalysts

Author

Monserrat Bizarro, Abdelhadi Kassiba, Goldie Oza, M. Tabellout, Sandrine Coste, S. Velumani, Victor Ishrayelu Merupo, Institut des Molécules et Matériaux du Mans (IMMM), and Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nanocomposite, Materials science, Doping, Nanoparticle, Nanotechnology, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Homogeneous distribution, 0104 chemical sciences, Nanoclusters, Band bending, Chemical engineering, Photocatalysis, [CHIM]Chemical Sciences, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS, Visible spectrum
Abstract

Nanostructured composites based on plasmonic Ag metal nanoclusters with monoclinc-BiVO4 nanoparticles were prepared by high energy ball milling technique. The agglomerated morphology with a spherical shape of 50–100 nm sized BiVO4 particles associated with homogeneous distribution of 5–10 nm Ag clusters significantly enhanced the photocatalytic activity for the degradation of acid blue dyes. The Ag doping concentration with BiVO4 was optimized at 3 at. % leading to almost 10 folds faster photocatalytic degradation rate as compared to pristine form. Thus, Ag doped BiVO4 nanocomposites show efficient visible light driven photocatalytic activity due to charge distribution at the semiconducting-metal interfaces from band bending and the involvement of a radiation field enhanced by plasmon resonance effects at the surfaces of Ag-clusters.

Published
2016
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4. Hybrid Core−Shell Nanocomposites Based on Silicon Carbide Nanoparticles Functionalized by Conducting Polyaniline: Electron Paramagnetic Resonance Investigations

Author

Nicolas Errien, Waldemar Bednarski, Abdelhadi Kassiba, Y. Noskov, Stéphanie Kodjikian, Lukasz Laskowski, N. A. Ogurtsov, Kateryna Fatyeyeva, M. Tabellout, Alexander Pud, Malgorzata Makowska-Janusik, Laboratoire de physique de l'état condensé (LPEC), Centre National de la Recherche Scientifique (CNRS)-Le Mans Université (UM), Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine (NASU), Institute of Physics, Jan Dlugosz University, Laboratoire des oxydes et fluorures (LdOF ), and Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)

Subjects
Materials science, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, symbols.namesake, chemistry.chemical_compound, Nuclear magnetic resonance, law, Polyaniline, Physical and Theoretical Chemistry, Electron paramagnetic resonance, ComputingMilieux_MISCELLANEOUS, Conductive polymer, [PHYS]Physics [physics], Nanocomposite, Doping, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, General Energy, Chemical engineering, chemistry, symbols, Charge carrier, 0210 nano-technology, Raman spectroscopy
Abstract

Electron paramagnetic resonance (EPR) investigations were carried out on hybrid core−shell nanocomposites based on silicon carbide nanoparticles (SiC) and polyaniline (PANI) doped with camphor sulfonic acid (CSA). Charge carrier concentrations and thermal activations in low and high conducting polymers arranged as thin layers (2−5 nm) on the nanoparticle surfaces were investigated in a wide temperature range [4−430 K]. The EPR results and analyses are supported by complementary investigations of the macroscopic electrical conductivity and vibrational properties probed by Raman spectrometry. Temperature-dependent EPR measurements indicate paramagnetic susceptibilities with Curie−Weiss-like features and thermally activated spins. In contrast to the annealing stability of the nanocomposites, kinetic phenomena were witnessed on the EPR spectra of highly doped PANI. These phenomena correlate with the occurrence of transverse bipolarons which lead to irreversible structural changes in the polymer backbone. Pola...

Published
2007
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5. The inserted piezoelectric sensor method for monitoring thermosets cure

Author

M. Tabellout, Yves Jayet, A. Raquois, Jacques Emery, 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), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and Mateis, Laboratoire

Subjects
Materials science, Piezoelectric sensor, Composite number, Thermosetting polymer, 02 engineering and technology, [SPI.MAT] Engineering Sciences [physics]/Materials, 01 natural sciences, [SPI.MAT]Engineering Sciences [physics]/Materials, Matrix (chemical analysis), 0103 physical sciences, Polymer chemistry, Composite material, Instrumentation, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, chemistry.chemical_classification, Epoxy, Polymer, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, chemistry, visual_art, visual_art.visual_art_medium, Ultrasonic sensor, 0210 nano-technology
Abstract

An original method enabling the in-situ and real time monitoring of a polymer structure evolution using an inserted piezoelectric sensor is presented. The validation of this technique is done at constant temperature by comparison to the results obtained on several polymers by classical ultrasonic methods in practically the same conditions. The complete validation is achieved by monitoring the complex cure of a polymer matrix fibre reinforced composite PMR-15 under sever conditions of temperature.

Published
2001

6. CARACTÉRISATION ULTRA-ACOUSTIQUE DE RÉSEAUX POLYURÉTHANE

Author

M. Tabellout, Hery Randrianantoandro, J. R. Emery, and D. Durand

Subjects
[PHYS.HIST]Physics [physics]/Physics archives, 0103 physical sciences, General Physics and Astronomy, 01 natural sciences, 010305 fluids & plasmas
Abstract

La formation et les propriétés finales de réseaux macromoléculaires covalents sont étudiés au moyen de techniques de propagation ultrasonore. Dans le cas de réseaux polyuréthanne, l'évolution de la vitesse de propagation et de l'absorption des ondes longitudinales montrent l'intérêt de la spectroscopie ultrasonore utilisée comme méthode d'investigation de la croissance du réseau ainsi que des propriétés du matériau à l'état achevé.

Published
1992
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