Search

Your search keyword '"Mathilde Rieu"' showing total 29 results
Start Over Author "Mathilde Rieu" Topic 02 engineering and technology
29 results on '"Mathilde Rieu"'

1. Development of a selective ammonia YSZ-based sensor and modeling of its response

Author

Philippe Breuil, Gita Nematbakhsh Abkenar, Jean-Paul Viricelle, Mathilde Rieu, Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, V2O5, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, Mixed-potential gas sensor, 01 natural sciences, Oxygen, Response modeling, Electron transfer, Ammonia, chemistry.chemical_compound, symbols.namesake, Materials Chemistry, Sensing electrode, Nernst equation, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Electrical and Electronic Engineering, Instrumentation, Yttria-stabilized zirconia, Ammonia gas, Metals and Alloys, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Electrode, symbols, 0210 nano-technology, Selectivity
Abstract

International audience; In the present study, Au-V2O5 sensing material was tested as a sensing electrode for developing mixed-potential ammonia gas sensors. The results of gas sensing measurements indicated selective responses to NH3 while this selectivity was highly dependent on the temperature. Different V2O5 contents were tested in the sensing electrode. The results showed that by increasing V2O5 content from 15 wt.% to 50 wt.%, selective ammonia sensors could be achieved at 550 °C. The selectivity of Au-50%V2O5 sensor was also confirmed in gas mixtures of CO, NH3, NO, and NO2 gases. Modeling of the sensor responses in the ammonia concentration range 2-40 ppm at four oxygen concentrations was performed based on mixed-potential theory. Nernst and Butler-Volmer equations with an electron transfer assumption were used for data modeling.

Published
2021
Full Text
View/download PDF

2. A novel approach to a fully inkjet printed SnO2-based gas sensor on a flexible foil

Author

Omar Kassem, Jean-Paul Viricelle, Mathilde Rieu, Mohamed Saadaoui, Département d’Électronique Flexible (FEL-ENSMSE), CMP-GC-Ecole des Mines de Saint-Etienne (Institut Mines-Télécom (IMT)) (Mines Saint-Etienne ), Centre Microélectronique de Provence - Site Georges Charpak (CMP-GC) (CMP-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE)

Subjects
Materials science, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, Substrate (printing), 010402 general chemistry, polyimide, 01 natural sciences, gas sensor, SnO2, Materials Chemistry, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Electrical measurements, platinum, FOIL method, inkjet printing, Inkwell, General Chemistry, gold, 021001 nanoscience & nanotechnology, flexible support, 0104 chemical sciences, chemistry, Electrode, 0210 nano-technology, Platinum, Layer (electronics), Polyimide
Abstract

International audience; In recent years, printed and flexible gas sensors have quickly emerged as an innovative area of great interest because of their lightness and low cost. These flexible sensors can be easily integrated into autonomous systems for many applications such as smart food packaging and premature disease detection. In this paper, a novel approach was applied to manufacture a fully inkjet-printed gas sensor on a flexible polymeric foil. Platinum heater and gold electrodes were printed on the top side of the substrate, separated by a thin insulating layer of printed polyimide. An aqueous sol-gel process was adopted to synthesize nanosized SnO2-based sol that guaranty a crystallization at 350 °C, which is entirely consistent with the polyimide foil. Then, the sol was transformed into a stable ink and inkjet printed over the gold electrodes. The printability of different inks was optimized to ensure flawless ejection of droplets, and the complex physico-chemical interactions between the inks and different interfaces were controlled to get well-defined patterns with high resolution. Finally, electrical measurements of the printed sensor were performed to characterize the response and the sensitivity to different concentrations of ethanol, ammonia and carbon monoxide gases, at working temperature of 300 °C, in dry and wet air.

Published
2019
Full Text
View/download PDF

3. Single chamber Solid Oxide Fuel Cells selective electrodes: A real chance with brownmillerite-based nanocomposites

Author

Mathilde Rieu, Jean-Paul Viricelle, Simone Mascotto, Antonella Glisenti, A. Bedon, Efesto Innovation S.r.l., Department of Chemical Sciences, Université de Padoue, Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut für Anorganische und Angewandte Chemie, Universität Hamburg (UHH), Université de Hambourg, CNR-ICMATE, University of Padova - Department of Chemical Sciences, and Universität Hamburg - Institut für Anorganische und Angewandte Chemie

Subjects
Single-chamber solid oxide fuel cell, Materials science, Iron oxide, Oxide, Energy Engineering and Power Technology, chemistry.chemical_element, 02 engineering and technology, engineering.material, 010402 general chemistry, 7. Clean energy, 01 natural sciences, Oxygen, Methane, law.invention, chemistry.chemical_compound, Selective electrodes, law, Brownmillerite, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Nanocomposite, Renewable Energy, Sustainability and the Environment, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Cathode, Brownmillerites, Iron oxide nanocomposites, 0104 chemical sciences, Anode, Fuel Technology, chemistry, Chemical engineering, engineering, 0210 nano-technology
Abstract

International audience; In this contribution brownmillerite-based nanocomposite cathode for Single-Chamber Solid Oxide Fuel Cells is developed. These cells can be very attractive especially for small and cheap devices because of the absence of seals. The efficiency of SC-SOFCs is strictly connected to the selectivity of anode and cathode, the bottleneck for this technology. The development of a cathode inert in fuel oxidation is particularly challenging. Our strategy is to start from a catalytically un-active support (CFA = Ca2FeAl0.95Mg0.05O5) and induce the formation of iron oxide based nanoparticles, expected to activate oxygen. Symmetric (CFA + FeOx/CGO/CFA + FeOx) and complete cells (CFA + FeOx/CGO/Ni-CGO) are studied in air and methane/oxygen 2:1 mixture. The Area Specific Resistance of CFA + FeOx is less than 1/3 that of CFA. The high selectivity allows to reach an efficiency of 25%; power still needs to be increased but we demonstrated the possibility to develop selective low cost electrodes. The effect of air, methane/oxygen exposure and the heat treatments were carefully investigated.

Published
2021
Full Text
View/download PDF

4. Functionalized SnO2 Sensors on Flexible Substrate for Ammonia Detection at Low Temperature

Author

Jean-Paul Viricelle, Mohamed Saadaoui, Christophe Pijolat, Omar Kassem, Mohamad Hijazi, Mathilde Rieu, Valérie Stambouli, Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire des matériaux et du génie physique (LMGP ), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), Département d’Électronique Flexible (FEL-ENSMSE), CMP-GC-Ecole des Mines de Saint-Etienne (Institut Mines-Télécom (IMT)) (Mines Saint-Etienne ), Materials Center Leoben Forschung GmbH (MCL) und Techkonnex – High Tech Promotion, Karl-Franzens-Universität Graz, Anton Köck, Marco Deluca, and Université Grenoble-Alpes - LMGP

Subjects
Materials science, lcsh:A, Nanotechnology, 02 engineering and technology, Substrate (printing), ammonia, 01 natural sciences, Ammonia, chemistry.chemical_compound, sensor, SnO2, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 010401 analytical chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, flexible substrate, End-group, chemistry, Breath gas analysis, Silanization, inkjet, functionalization, Surface modification, lcsh:General Works, 0210 nano-technology, Selectivity
Abstract

Ce congrès est un événement digital: 4th international nanoFIS 2020 conference – 100% Digital at highest scientific level!; International audience; Ammonia detection at ambient with low-cost sensors is a challenge for various applications like breath analysis and agriculture. Such a challenge can be reached with functionalized SnO2 based gas sensors using silanization by 3-aminopropyltriethoxysilane (APTES) as an intermediate step before grafting with functional end group providing selectivity for the target gas. Moreover, operation at room temperature gives the opportunity to develop a sensor on a plastic substrate entirely manufactured by inkjet technology, by developing suitable inks, in particular to obtain SnO2 sensing element.

Published
2020
Full Text
View/download PDF

5. Catalytic and Electrochemical Properties of Ag Infiltrated Perovskite Coatings for Propene Deep Oxidation

Author

Daniel Marinha, A. Caravaca, Jean-Paul Viricelle, I. Kalaitzidou, Laurence Burel, Philippe Vernoux, Benjamin Rotonnelli, Thai Giang Truong, Helena Kaper, Mathilde Rieu, laboratoire de synthèse et fonctionnalisation des céramiques (LSFC), SAINT-GOBAIN-Centre National de la Recherche Scientifique (CNRS), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Saint-Gobain CREE/ UMR 3080 CNRS/ Laboratoire de Synthèse et Fonctionnalisation des Céramiques, and Université Claude Bernard Lyon 1 - CNRS - IRCELYON

Subjects
Materials science, chemistry.chemical_element, Ionic bonding, 02 engineering and technology, 010402 general chemistry, Electrochemistry, lcsh:Chemical technology, 7. Clean energy, 01 natural sciences, Oxygen, Catalysis, Propene, lcsh:Chemistry, chemistry.chemical_compound, Cubic zirconia, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, lcsh:TP1-1185, Physical and Theoretical Chemistry, Yttria-stabilized zirconia, Perovskite (structure), self-sustained electrochemical promotion, silver catalyst, propene oxidation, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Chemical engineering, chemistry, lcsh:QD1-999, 0210 nano-technology, mixed ionic electronic conductor, VOC abatement
Abstract

This study reports the catalytic properties of Ag nanoparticles dispersed on mixed ionic and electronic conducting layers of LSCF (La0.6Sr0.4Co0.2Fe0.8O3) for propene combustion. A commercial and a synthesized LSCF powder were deposited by screen-printing or spin-coating on dense yttria-stabilized zirconia (YSZ) substrates, an oxygen ion conductor. Equal loadings (50 &micro, g) of Ag nanoparticles were dispersed via drop-casting on the LSCF layers. Electrochemical and catalytic properties have been investigated up to 300 &deg, C with and without Ag in a propene/oxygen feed. The Ag nanoparticles do not influence the electrochemical reduction of oxygen, suggesting that the rate-determining step is the charge transfer at the triple phase boundaries YSZ/LSCF/gas. The anodic electrochemical performances correlate well with the catalytic activity for propene oxidation. This suggests that the diffusion of promoting oxygen ions from YSZ via LSCF grains can take place toward Ag nanoparticles and promote their catalytic activity. The best specific catalytic activity, achieved for a LSCF catalytic layer prepared by screen-printing from the commercial powder, is 800 times higher than that of a pure Ag screen-printed film.

Published
2020
Full Text
View/download PDF

6. Simulation of nanosecond IR laser annealing of cerium gadolinium oxide

Author

Jean-Michel Rampnoux, Jean-Paul Viricelle, Philippe Breuil, Mariana Mariño, Florence Garrelie, Damien Jamon, Mathilde Rieu, Laboratoire Georges Friedel (LGF-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire Ondes et Matière d'Aquitaine (LOMA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Institut d'Optique Graduate School - Laboratoire Hubert Curien - UJM Saint-Etienne - Université de Lyon, Laboratoire Onde et Matière d'Aquitaine (LOMA) - Université de Bordeaux, ANR-11-IDEX-0007,Avenir L.S.E.,PROJET AVENIR LYON SAINT-ETIENNE(2011), and ANR-10-EQPX-0036,MANUTECH-USD,Ultrafast Surface Design - MANUTECH(2010)

Subjects
Materials science, Annealing (metallurgy), Oxide, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, chemistry.chemical_compound, Ellipsometry, law, Materials Chemistry, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Ceramic, Infrared laser, Thermal simulation, business.industry, Single Chamber SOFC, CGO, Far-infrared laser, 021001 nanoscience & nanotechnology, Laser, 0104 chemical sciences, Cerium, chemistry, visual_art, Attenuation coefficient, Ceramics and Composites, visual_art.visual_art_medium, Optoelectronics, 0210 nano-technology, business
Abstract

International audience; Laser induced densification of ceramic oxide has shown great promises. However to control this process in regards of the final properties of the material, it is necessary to understand phenomena occurring during laser matter interaction, especially heat diffusion through the material. A thermal simulation of cerium gadolinium oxide (CGO) submitted to infrared laser pulses is presented. In order to determine the temperature profile during laser treatment, optical properties of CGO must be known; for this purpose, ellipsometry measurements were performed in order to obtain absorption coefficient and reflectivity. Finally, a thermal model based on heat equation was developed. Experimental observations of irradiated CGO surfaces were in agreement with the simulation results, in particular at maximum temperature when the material reaches fusion.

Published
2018
Full Text
View/download PDF

7. Electrochemical promotion of propylene combustion on Ag catalytic coatings

Author

Philippe Vernoux, Elena A. Baranova, I. Kalaitzidou, Mathilde Rieu, François Gaillard, Laurence Burel, Jean-Paul Viricelle, T. Cavoue, Antoinette Boreave, David Horwat, L. Retailleau-Mevel, IRCELYON-Catalytic and Atmospheric Reactivity for the Environment (CARE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and IRCELYON-Microscopie (MICROSCOPIE)

Subjects
Materials science, Inorganic chemistry, Oxide, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, Combustion, Electrochemistry, 7. Clean energy, 01 natural sciences, Oxygen, Catalysis, chemistry.chemical_compound, Reactivity (chemistry), Cubic zirconia, chemistry.chemical_classification, Reactive oxygen species, Process Chemistry and Technology, [CHIM.CATA]Chemical Sciences/Catalysis, General Chemistry, 021001 nanoscience & nanotechnology, [SDE.ES]Environmental Sciences/Environmental and Society, 0104 chemical sciences, chemistry, 13. Climate action, 0210 nano-technology
Abstract

Catalytic and electrocatalytic tests have been carried out in a solid oxide cell for propylene combustion using two different Ag screen-printed films deposited on yttria-stabilized zirconia. Competitive adsorption between oxygen and propylene has been observed at 300 °C. Catalytic performances can be tailored by current application in a non-Faradaic manner. The predominant impact of current applications is to modify the reactivity of oxygen present on the Ag surface. Positive current applications enhance the propylene conversion by producing more reactive oxygen species. This beneficial effect is more pronounced under lean-burn conditions where the oxygen coverage on Ag is high.

Published
2018
Full Text
View/download PDF

8. Ag-based electrocatalysts for ethylene epoxidation

Author

Laurence Burel, Jean-Paul Viricelle, B. Gilbert, Sylvie Migot, F.J. Cadete Santos Aires, P. Vilasi, Mathilde Rieu, Philippe Vernoux, Stéphanie Bruyère, A. Caravaca, T. Cavoue, Mimoun Aouine, David Horwat, IRCELYON-Catalytic and Atmospheric Reactivity for the Environment (CARE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IRCELYON-Microscopie (MICROSCOPIE), Laboratoire Georges Friedel (LGF-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut Jean Lamour (IJL), and Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Ethylene, Materials science, ethylene epoxidation, 020209 energy, General Chemical Engineering, Oxide, chemistry.chemical_element, Sintering, electrooxidation, Ag, 02 engineering and technology, ethylene oxide, 01 natural sciences, 7. Clean energy, Oxygen, Catalysis, chemistry.chemical_compound, oxide ions, 0202 electrical engineering, electronic engineering, information engineering, Electrochemistry, Yttria-stabilized zirconia, reactive magnetron sputtering, Ethylene oxide, [CHIM.ORGA]Chemical Sciences/Organic chemistry, 010405 organic chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, Cermet, 0104 chemical sciences, YSZ, chemistry, Chemical engineering, GDC, [CHIM.OTHE]Chemical Sciences/Other
Abstract

International audience; Ethylene oxide (EO) is industrially produced by epoxidation of ethylene on Ag-based heterogeneous catalysts. Electrophilic oxygen species are assumed to be active key species in the EO production. This study explores the possibility to electrochemically produced these oxygen species in a solid oxide electrochemical cell. Two series of Ag based cermet electrodes were prepared either with Yttria Stabilized Zirconia (YSZ), a pure oxygen ionic conductor, or with Gadolinia-Doped Ceria (GDC), a mixed ionic and electronic conductor. Ag/YSZ cermet layers were deposited on planar and tubular YSZ dense substrates by using a conventional chemical method while Ag/GDC cermets were coated on GDC dense pellets by reactive magnetron sputtering. We evidenced a self-redispersion of Ag in the ethylene/oxygen mixture in Ag/YSZ cermet layers leading to the formation of small Ag clusters in close interaction with YSZ which are selective for epoxidation. However, the sintering process of these small Ag clusters is too fast even at 260°C to maintain the EO selectivity. On the other hand, the selectivity towards EO and the ethylene conversion of Ag/GDC cermet coatings were found to linearly increase with the applied current, demonstrating for the first time, the direct electrooxidation of ethylene into EO.

Published
2021
Full Text
View/download PDF

9. Ethylene epoxidation on Ag/YSZ electrochemical catalysts: Understanding of oxygen electrode reactions

Author

Jean-Paul Viricelle, Philippe Vernoux, A. Caravaca, Thomas Cavoué, I. Kalaitzidou, François Gaillard, Mathilde Rieu, IRCELYON-Catalytic and Atmospheric Reactivity for the Environment (CARE), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and Université de Lyon, Institut de Recherches sur la Catalyse et l'Environnement de Lyon, UMR 5256, CNRS

Subjects
Materials science, Ag/YSZ, Inorganic chemistry, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, Electrochemistry, 01 natural sciences, 7. Clean energy, Oxygen, Catalysis, law.invention, lcsh:Chemistry, law, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Polarization (electrochemistry), Clark electrode, Ethylene epoxidation, Electrochemical Impedance Spectroscopy (EIS), Oxygen electrode reaction, 021001 nanoscience & nanotechnology, Rate-determining step, 0104 chemical sciences, Dielectric spectroscopy, chemistry, lcsh:Industrial electrochemistry, lcsh:QD1-999, Chemisorption, 0210 nano-technology, [CHIM.OTHE]Chemical Sciences/Other, lcsh:TP250-261
Abstract

In this study, we have investigated, for the very first time, the oxygen electrode reactions on Ag/YSZ electrochemical catalysts both in oxygen and under reaction conditions compatible with the ethylene epoxidation reaction. Electrochemical Impedance Spectroscopy (EIS) in combination with in-situ Raman spectroscopy and catalytic activity measurements were used to identify and understand the main oxygen reaction pathways. The results obtained suggested that the rate limiting step under an O2 reaction atmosphere (at 300 °C) is the O2 adsorption/dissociation process on the Ag catalyst-electrode. In addition, the polarization resistance increased with time under the presence of O2. This was attributed to the formation of Ag2O on the catalyst surface or near surface, which limits the oxygen electrode reactions. Finally, we observed that the addition of ethylene in the feed stream hinders the electrode reaction, due to its competitive chemisorption with oxygen on Ag. These results give new insights into the design of selective Ag/YSZ catalyst for ethylene epoxidation. Keywords: Electrochemical Impedance Spectroscopy (EIS), Oxygen electrode reaction, Ag/YSZ, Ethylene epoxidation

Published
2019
Full Text
View/download PDF

10. Sensitive and selective ammonia gas sensor based on molecularly modified SnO2

Author

Jean-Paul Viricelle, Valérie Stambouli, Christophe Pijolat, Mathilde Rieu, Guy Tournier, Mohamad Hijazi, Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Laboratoire des matériaux et du génie physique (LMGP ), Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), CMC2, École des Mines de Saint-Étienne, Dr. Jean-Paul Viricelle, Dr. Christophe Pijolat, Dr. Mathilde Rieu, LMGP, Université Grenoble-Alpes, Grenobble INP-MINATEC, and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Inorganic chemistry, ambient temperature, Oxide, lcsh:A, 02 engineering and technology, 01 natural sciences, ammonia, gas sensor, chemistry.chemical_compound, Ammonia, Acyl chloride, SnO2, Molecule, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0101 mathematics, Alkyl, chemistry.chemical_classification, 010102 general mathematics, selectivity, 021001 nanoscience & nanotechnology, sensitivity, APTES, molecular modification, chemistry, Surface modification, lcsh:General Works, 0210 nano-technology, Selectivity, Carbon monoxide
Abstract

ISSN: 2504-3900; International audience; The development of selective and cheap metal oxide gas sensor at ambient temperature is still a challenging idea. In this study, SnO2 surface functionalization was performed in order to obtain sensitive and selective gas sensor operated at ambient temperature. 3-aminopropyltriethoxysilane (APTES) was used as an intermediate step, followed by functionalization with molecules having acyl chloride with different end functional groups molecules such as alkyl, acid and ester groups. Acid and ester modified sensors are sensitive to ammonia between 0.2 and 10 ppm at room temperature. However, ester modified SnO2 is more selective than acid modified sensor regarding ethanol and carbon monoxide gases.

Published
2017
Full Text
View/download PDF

11. Synthesis and Inkjet Printing of SnO2 Ink on a Flexible Substrate for Gas Sensor Application

Author

Mohamed Saadaoui, Omar Kassem, Mathilde Rieu, Jean-Paul Viricelle, Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), EMSE-CMP, Ecole Nationale Supérieure des Mines de Saint-Etienne, Centre Microélectronique de Provenc (EMSE-CMP), Ministère du Redressement productif-Ministère du Redressement productif, CMC2, École des Mines de Saint-Étienne, Dr. Jean-Paul Viricelle, Dr. Christophe Pijolat, Dr. Mathilde Rieu, and CMP-EMSE Gardanne

Subjects
0209 industrial biotechnology, inkjet printing, Materials science, Inkwell, Thermal resistance, 010401 analytical chemistry, lcsh:A, 02 engineering and technology, Substrate (printing), 01 natural sciences, 0104 chemical sciences, gas sensor, Surface tension, Viscosity, flexible substrate, 020901 industrial engineering & automation, SnO2, Printed electronics, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Electrical measurements, printed electronics, Composite material, lcsh:General Works, FOIL method
Abstract

ISSN: 2504-3900; International audience; Sol based SnO2 precursor was synthetized by aqueous sol-gel route, then transformed into a stable ink with appropriate viscosity and surface tension to be inkjet printed and sintered at relatively moderate temperature. Plastic foil with thickness of 50 µm was selected as substrate for its high thermal resistance and stability (Upilex-50S). Prepared sol and formulated ink were both characterized by analytical techniques; electrical measurements were performed on the printed sensing film to characterize the response to CO gas in different concentrations, at working temperature of 300°C.

Published
2017
Full Text
View/download PDF

12. Laser induced densification of cerium gadolinium oxide: Application to single-chamber solid oxide fuel cells

Author

Jean-Paul Viricelle, Mathilde Rieu, Mariana Mariño, Florence Garrelie, Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Laboratoire Hubert Curien [Saint Etienne] (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS), Université Jean Monnet-Laboratoire Hubert Curien, and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Diffusion barrier, Hydrogen, medicine.medical_treatment, Inorganic chemistry, Oxide, General Physics and Astronomy, chemistry.chemical_element, electrolyte, 02 engineering and technology, Electrolyte, engineering.material, 010402 general chemistry, cerium gadolinium oxide, 01 natural sciences, law.invention, chemistry.chemical_compound, Coating, law, medicine, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, SC-SOFC, surface densification, Excimer laser, Surfaces and Interfaces, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Cathode, 0104 chemical sciences, Surfaces, Coatings and Films, Anode, Yb fiber laser irradiations, KrF excimer laser irradiations, Chemical engineering, chemistry, engineering, 0210 nano-technology
Abstract

International audience; In single-chamber solid oxide fuel cells (SC-SOFC), anode and cathode are placed in a gas chamber where they are exposed to a fuel/air mixture. Similarly to conventional dual-chamber SOFC, the anode and the cathode are separated by an electrolyte. However, as in the SC-SOFC configuration the electrolyte does not play tightness role between compartments, this one can be a porous layer. Nevertheless, it is necessary to have a diffusion barrier to prevent the transportation of hydrogen produced locally at the anode to the cathode that reduces fuel cell performances. This study aims to obtain directly a diffusion barrier through the surface densification of the electrolyte Ce0.9Gd0.1O1.95 (CGO) by a laser treatment. KrF excimer laser and Yb fiber laser irradiations were used at different fluences and number of pulses to modify the density of the electrolyte coating. Microstructural characterizations confirmed the modifications on the surface of the electrolyte for appropriate experimental conditions showing either grain growth or densified but cracked surfaces. Gas permeation and electrical conductivities of the modified electrolyte were evaluated. Finally SC-SOFC performances were improved for the cells presenting grain growth at the electrolyte surface.

Published
2016
Full Text
View/download PDF

13. Study of two vanadium based materials as working electrode for developing a selective mixed-potential ammonia sensor

Author

Jean-Paul Viricelle, Gita Nematbakhsh Abkenar, Mathilde Rieu, Philippe Breuil, Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Materials Center Leoben Forschungs GmbH, University of Graz (Uni Graz), Graz University of Technology (TU Graz), Anton Köck, and Marco Deluca

Subjects
0209 industrial biotechnology, Working electrode, Materials science, Ni3V2O8, chemistry.chemical_element, Vanadium, lcsh:A, 02 engineering and technology, Electrolyte, 01 natural sciences, Reference electrode, Vanadium oxide, 020901 industrial engineering & automation, vanadium oxide, working electrode, Yttria-stabilized zirconia, 010401 analytical chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 0104 chemical sciences, chemistry, Chemical engineering, mixed potential sensor, Electrode, lcsh:General Works, Platinum, ammonia gas sensor
Abstract

International audience; Mixed potential ammonia gas sensors were fabricated by using two sensing materials of Ni3V2O8 and Au-V2O5 as working electrodes, YSZ as electrolyte and platinum as reference electrode. The results have shown that the Ni3V2O8 sensors show cross-sensitivity toward NO gas. However, Au-V2O5 working electrodes displayed a high sensitivity to NH3 as well as very fast response and recovery times at high temperatures. Furthermore, the results indicate that the selectivity of Au-V2O5sensors increases by increasing temperature.

Published
2018
Full Text
View/download PDF

14. Fabrication of SnO2 Flexible Sensor by Inkjet Printing Technology

Author

Mohamed Saadaoui, Jean-Paul Viricelle, Omar Kassem, Mathilde Rieu, Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Centre Microélectronique de Provence - Site Georges Charpak (CMP-GC) (CMP-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département d’Électronique Flexible (FEL-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-CMP-GC, Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Materials Center Leoben Forschungs GmbH, University of Graz (Uni Graz), Graz University of Technology (TU Graz), Anton Köck, Marco Deluca, Ecole Nationale Supérieure des Mines de St Etienne-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), CMP-GC-Ecole des Mines de Saint-Etienne (Institut Mines-Télécom (IMT)) (Mines Saint-Etienne ), and Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE)

Subjects
Materials science, Fabrication, lcsh:A, 02 engineering and technology, Substrate (printing), sol-gel process, 01 natural sciences, law.invention, [SPI.MAT]Engineering Sciences [physics]/Materials, SnO2 ink preparation, law, 0103 physical sciences, flexible gas sensor, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Thin film, Composite material, Crystallization, Sol-gel, 010302 applied physics, inkjet printing, Inkwell, 021001 nanoscience & nanotechnology, Tin oxide, Piezoelectricity, lcsh:General Works, 0210 nano-technology
Abstract

International audience; In this work, a flexible tin oxide (SnO2) gas sensor was successfully fabricated by inkjet printing technology. This thin film deposition technique requires the formulation of stable suspensions with specific fluidic properties. Aqueous Sol-gel method was applied to synthesize astable sol based on tin oxide, then transformed into ink with the appropriate viscosity and surface tension to be printed using a drop-on-demand piezoelectric inkjet printer. Thermal analyses of synthetized sol show that a crystallized structure of SnO2 could be obtained at 350 °C, which is lower than crystallization temperatures of SnO2 previously reported in the literature, and entirely consistent with our plastic substrate. The printed thin-film was then sintered at 350 °C on polyimide foil (Upilex-50S) and characterized as sensor.

Published
2018
Full Text
View/download PDF

15. Synthesis and inkjet printing of sol–gel derived tin oxide ink for flexible gas sensing application

Author

Omar Kassem, Jean-Paul Viricelle, Mathilde Rieu, Sergio Sao-Joao, Mohamed Saadaoui, École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT), Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), Université de Lyon, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre Microélectronique de Provence - Site Georges Charpak (CMP-GC) (CMP-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Département d’Électronique Flexible (FEL-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-CMP-GC, Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Centre Science des Matériaux et des Structures (SMS-ENSMSE), PMM-ENSMSE- Département Physique et Mécanique des Matériaux, Ecole Nationale Supérieure des Mines de St Etienne-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), CMP-GC-Ecole des Mines de Saint-Etienne (Institut Mines-Télécom (IMT)) (Mines Saint-Etienne ), Ecole Nationale Supérieure des Mines de St Etienne-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), and Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE)

Subjects
Materials science, Fabrication, gas sensor 2, Oxide, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, gas sensor, chemistry.chemical_compound, law, SnO2, General Materials Science, Electrical measurements, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Crystallization, Thermal analysis, Sol-gel, inkjet printing, Mechanical Engineering, 021001 nanoscience & nanotechnology, Tin oxide, 0104 chemical sciences, flexible substrate, Chemical engineering, chemistry, Mechanics of Materials, Printed electronics, printed electronics, 0210 nano-technology
Abstract

International audience; The fabrication of printed electronic devices based on metal oxide inks requires the formulation of stable suspensions with specific fluidic properties. In our work, a tin oxide based solution was synthesized by aqueous sol–gel method and transformed into an ink with appropriate viscosity and surface tension to be inkjet-printed on polyimide foil and sintered at relatively low temperature. Thermal analysis by TGA/DSC and microstructural analysis by XRD of synthesized sol show that a crystallized structure of SnO2 could be obtained at 350 °C, which is lower than crystallization temperatures of SnO2 previously reported in the literature, and entirely consistent with the use of polyimide foil. The stability and the rheological properties of the ink were studied to ensure the jettability criteria of the inkjet printer. Electrical measurements of the printed sensing films were performed to characterize the response to CO gas in different concentrations, at working temperature of 300 °C.

Published
2018
Full Text
View/download PDF

16. Ambient temperature selective ammonia gas sensor based on SnO2-APTES modifications

Author

Jean-Paul Viricelle, Valérie Stambouli, Guy Tournier, Mohamad Hijazi, Christophe Pijolat, Mathilde Rieu, Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Laboratoire des matériaux et du génie physique (LMGP ), Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Grenoble INP - Laboratoire des Matériaux et du Génie Physique (LMGP)

Subjects
Inorganic chemistry, Infrared spectroscopy, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, chemistry.chemical_compound, Acyl chloride, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, SnO2, Materials Chemistry, Acetone, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Electrical and Electronic Engineering, Functionalization, Instrumentation, Alkyl, chemistry.chemical_classification, Chemistry, Metals and Alloys, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, APTES, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, End-group, Silanization, Surface modification, Room temperature detection, Ammonia gas, 0210 nano-technology, Selectivity
Abstract

International audience; In order to deal with the well-known lack of selectivity of SnO2 based gas sensors, the functionalization of SnO2 was performed. Liquid silanization by 3-aminopropyltriethoxysilane (APTES) was used as an intermediate step, followed by functionalization with molecules bearing acyl chloride with alkyl or ester end functional groups. Modified sensors with APTES, alkyl and ester end functional groups were successfully characterized by Attenuated Total Reflectance-Fourier Transform Infrared spectroscopy (ATR-FTIR). No response was observed for APTES and alkyl modified SnO2 sensors to ammonia gas at room temperature while the SnO2 sensor modified with ester end group was found to be sensitive and selective to ammonia gas at room temperature. This implies that the response is generated by ester functional groups. Working at low temperature is also one of the advantages of these sensors as well as the selectivity with respect to other gases like acetone and ethanol.

Published
2018
Full Text
View/download PDF

17. Rational Development of IT-SOFC Electrodes Based on the Nanofunctionalization of La0.6Sr0.4Ga0.3Fe0.7O3 with Oxides. PART 1: Cathodes by Means of Iron Oxide

Author

Jean-Paul Viricelle, Antonella Glisenti, Mathilde Rieu, A. Bedon, Universita degli Studi di Padova, Université de Lyon, Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE)

Subjects
cathode, iron oxide, Materials science, Oxide, Iron oxide, Energy Engineering and Power Technology, Nanoparticle, 02 engineering and technology, Thermal treatment, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 010402 general chemistry, 7. Clean energy, 01 natural sciences, law.invention, chemistry.chemical_compound, X-ray photoelectron spectroscopy, law, nanocomposites, Materials Chemistry, Electrochemistry, Chemical Engineering (miscellaneous), SOFC, LSGF, Electrical and Electronic Engineering, perovskite, Perovskite (structure), Nanocomposite, EIS, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Cathode, 0104 chemical sciences, wet impregnation, chemistry, Chemical engineering, 0210 nano-technology, [CHIM.OTHE]Chemical Sciences/Other
Abstract

International audience; Solid Oxide Fuel Cells (SOFCs) are electrochemical devices capable of converting and storing energy in a sustainable and efficient way. The decrease of the operating temperature could be of great help for their diffusion. The use of nanocomposites is a smooth way to design materials with many advanced functionalities that could not be reached at the same time with only a single component. Two LSGF (La0.6Sr0.4Ga0.3Fe0.7O3) nanocomposites have been synthesized by wet impregnating manganese and iron oxides (MOx+LSGF, with M = Fe/Mn). The composites’ powders have been extensively characterized by means of XRD, XPS, N2-asdorption, SEM, EDX, TPR, O2-TPD and the results compared with those obtained for LSGF. The supporting perovskite stabilizes the lower oxidation states of Mn and Fe and a deep interaction between the deposited oxides and the perovskite surface is evident. Both Mn and Fe diffuse inside the perovskite during thermal treatments and this phenomenum greatly affect oxygen vacancies, mobility, and exchange capability. The catalytic activity for methane oxidation is affected by nanocomposition. Focusing on the IT-SOFCs, two symmetric cells of the type MOx+LSGF/CGO/LSGF+MOx have been prepared starting from the nanocomposites’ powder. The effect of the SOFCs preparation conditions (temperature, atmosphere) on the electrode and on the cell has been assessed and compared, also through in-situ high temperature XRD, simulating, on the electrodes’ powder, the same treatment necessary to prepare the cell. The use of nanocomposites powders as starting point for electrodes allows to deeply modify the electrochemical performance. A thin, Sr/Fe-rich foil forms on the surface of the electrode during SOFC thermal and deeply improves the electrochemical behaviour of the FeOx+LSGF cathode. The electrochemical results are encouraging for future application in SOFCs, as nanocomposite has an ASR reduced by ⅓ compared to LSGF to 2.1 &#937·cm2 at 620°C.

Published
2018
Full Text
View/download PDF

18. Modified SnO2-APTES gas sensor for selective ammonia detection at room temperature

Author

Mohamad Hijazi, Jean-Paul Viricelle, Valérie Stambouli, Guy Tournier, Mathilde Rieu, Christophe Pijolat, École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT), Université de Lyon, Centre National de la Recherche Scientifique (CNRS), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Laboratoire des matériaux et du génie physique (LMGP ), Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), UFC: Université de Franche-Comté, Institut FEMTO-ST: Franche-Comté électronique mécanique thermique et optique - Sciences et technologies, S. Bland, and Université Grenoble-Alpes - LMGP

Subjects
Inorganic chemistry, 02 engineering and technology, 01 natural sciences, Gas snensors, Molecularlly functionalization, Ammonia, chemistry.chemical_compound, Acyl chloride, SnO2, 0103 physical sciences, Acetone, Selectivity, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Screen printing, Alkyl, 010302 applied physics, chemistry.chemical_classification, Chemistry, Tin dioxide, Conductance, 021001 nanoscience & nanotechnology, APTES, 3. Good health, Attenuated total reflection, Room temperature detection, Ammonia gas, 0210 nano-technology, Carbon monoxide
Abstract

International audience; The feasibility of room temperature ammonia gas sensors based on tin dioxide (SnO2) functionalization has been demonstrated. 3-aminopropyltriethoxysilane (APTES) was used as an intermediate step, followed by functionalization with molecules having acyl chloride with different end functional groups molecules such as alkyl, acid and ester groups. Modified films were characterized by attenuated total reflectance infra-red spectroscopy (ATR-FTIR). Upon exposure to ammonia gas, the electrical conductance of alkyl, acid and ester modified SnO2-APTES increases, whereas other reducing gases such as ethanol, carbon monoxide and acetone show no change in conductance. Furthermore, ester modified SnO2 is more selective than acid modified sensor regarding ethanol and carbon monoxide gases

Published
2017
Full Text
View/download PDF

19. Tunable architecture for flexible and highly conductive graphene–polymer composites

Author

Amélie Noël, Elodie Bourgeat-Lami, Jenny Faucheu, Mathilde Rieu, Jean-Paul Viricelle, Centre Science des Matériaux et des Structures (SMS-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Mécanique physique et interfaces (MPI-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SMS, Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, LCPP, Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 (C2P2), Centre National de la Recherche Scientifique (CNRS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC), ENSM-SE, Centre SMS, Département Mécanique physique et interfaces (MPI), Université de Lyon, Université Lyon 1, CPE Lyon, CNRS: UMR 5265, Laboratoire de Chimie, Catalyse, and Polymères et Procédés (C2P2)

Subjects
Nanocomposite, Materials science, Polymer nanocomposite, Flexible composites, Graphene, General Engineering, Percolation threshold, 02 engineering and technology, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Nanocomposites, 0104 chemical sciences, law.invention, law, Printed electronics, Percolation, Electrical properties, Ceramics and Composites, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Composite material, 0210 nano-technology
Abstract

International audience; Printed electronics, particularly on flexible and textile substrates, raised a strong interest during the past decades. This work presents a good candidate for conductive inks based on a graphene/polymer nanocomposite material that gathers three main benefits that are 1 - neither clogging nor flocculation, 2 - spontaneous film formation around room temperature, 3 - high conductivity. Nanosized Multilayered Graphene (NMG) is produced through a solvent-free procedure, using a grinding process in water. These NMG suspensions are used to elaborate conductive composite materials through physical blending with emulsifier-free latex. The nanocomposite microstructure exhibits a well-defined cellular architecture that highlights the formation of continuous paths of fillers throughout the material. The conductivity behavior of the nanocomposite material was efficiently described using a percolation model: the conductivity can be tuned by changing the NMG content and the latex size. A low percolation threshold (0.1 vol%) was obtained and the electrical conductivity reached 217 S m−1 for 6 vol% NMG. Efficient film forming occurs at room temperature leading to continuous and deformable materials, which is adequate for printing on flexible and textile substrates. The applicability in electronics is demonstrated by the use of the nanocomposite material in replacement of copper wires in a LED setup.

Published
2014
Full Text
View/download PDF

20. SOFC Long Term Operation in Pure Methane by Gradual Internal Reforming

Author

Jean-Paul Viricelle, Samuel Georges, Yann Bultel, A. Hadjar, Marlu César Steil, Nicolas Bailly, Mathilde Rieu, Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, and Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces

Subjects
Materials science, Waste management, methane, NiO-YSZ anode, LSM:YSZ (60:40) cathode, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Collection system, 01 natural sciences, 7. Clean energy, Methane, 0104 chemical sciences, Catalysis, Anode, chemistry.chemical_compound, Chemical engineering, chemistry, Fuel cells, Degradation (geology), [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Solid oxide fuel cell, SOFC, 0210 nano-technology
Abstract

A solid oxide fuel cell was designed to be operated in pure methane, without external reforming or carrier gas. The fuel cell was built up from conventional NiO-YSZ anode supported cell with a specific Pt screen-printed anodic collecting system and a Ir-CGO catalytic layer. The operation principle is based on Gradual Internal Reforming. After an initiation in H2 for 30 minutes, the cell was operated for almost 2000 hours in pure and dry CH4 with a fuel utilization rate of 30 %. Intrinsic gradual degradation of 15 %/1000 h was observed, but no coking occurred at the anodic side.

Published
2013
Full Text
View/download PDF

21. Selective Ammonia Gas Sensor based on SnO2-APTES Modification

Author

Jean-Paul Viricelle, Mathilde Rieu, Christophe Pijolat, Valérie Stambouli, Guy Tournier, Mohamad Hijazi, Laboratoire Georges Friedel (LGF-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire des matériaux et du génie physique (LMGP ), Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Hungarian Academy of Sciences, Akadémiai Kiadó / AKCongress, Prof. Dr. István Bársony, Dr. Gábor Battistig, Université Grenoble Alpes - Grenoble INP-MINATEC - Laboratoire des Matériaux et du Génie Physique (LMGP), Lmgp, Labo, and Département Microsystèmes, Instrumentation et Capteurs Chimiques (MICC-ENSMSE)

Subjects
Fabrication, Inorganic chemistry, acetone, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, chemistry.chemical_compound, Acyl chloride, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, SnO2, Acetone, Molecule, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, NH3, Alkyl, ComputingMilieux_MISCELLANEOUS, Engineering(all), surface functionalization, chemistry.chemical_classification, [CHIM.MATE] Chemical Sciences/Material chemistry, selectivity, General Medicine, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, APTES, 0104 chemical sciences, End-group, gas sensors, chemistry, Surface modification, 0210 nano-technology, Selectivity
Abstract

International audience; In the present work, SnO2 sensors were produced by thick film fabrication. In order to deal with well-known lack of selectivity of SnO2 sensors, functionalization was performed. Silanization by 3-aminopropyltriethoxysilane (APTES) in liquid phase was used as an intermediate step, followed by functionalization with molecules bearing acyl chloride with different end functional groups molecules, for example ester group. Modified sensors with APTES and ester end functional group were successfully characterized by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). The SnO2 sensor modified with ester end group was found to be sensitive and selective to ammonia gas at 100°C. Working at low temperature is also one of the advantages of these sensors as well as the selectivity with respect to other gases like acetone.

Published
2016
Full Text
View/download PDF

22. An all porous solid oxide fuel cell (SOFC): a bridging technology between dual and single chamber SOFCs

Author

Caroline Tardivat, Jean-Paul Viricelle, Marlu César Steil, Youmin Guo, Mehdi Bessaa, Christian Guizard, Nassira Benameur, Sonia Aguado, Philippe Vernoux, David Farrusseng, Damien Rembelski, Mathilde Rieu, Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire des Procédés en Milieux Granulaires (LPMG-EMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Synthèse et Fonctionnalisation de Céramiques (LSFC), Saint Gobain-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Lyon 1, Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON) - Université de Savoie, Université Joseph Fourier, LEPMI, UMR CNRS 5279 - Saint Gobain, Laboratoire de Synthèse et Fonctionnalisations des Céramiques, and UMR CNRS 3080

Subjects
Materials science, Bridging (networking), porous electrolyte, Waste management, Renewable Energy, Sustainability and the Environment, 02 engineering and technology, Electrolyte, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, Pollution, 0104 chemical sciences, Anode, dual chamber SOFC technology, Nuclear Energy and Engineering, Chemical engineering, Environmental Chemistry, Solid oxide fuel cell, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, 0210 nano-technology, Porosity, Single chamber
Abstract

International audience; A novel concept that employs dual chamber SOFC technology with a porous electrolyte, which allows the controlled distribution of gaseous O2 at the anode side, was successfully designed using an all porous structure. The oxidative reforming of hydrocarbon streams can consequently operate in a similar fashion to single chamber SOFCs, but within a safer, better controlled process

Published
2013
Full Text
View/download PDF

23. In situ reduction and evaluation of anode supported single chamber solid oxide fuel cells

Author

Jean-Paul Viricelle, Damien Rembelski, Lionel Combemale, Mathilde Rieu, Centre Sciences des Processus Industriels et Naturels ( SPIN-ENSMSE ), École des Mines de Saint-Étienne ( Mines Saint-Étienne MSE ), Institut Mines-Télécom [Paris]-Institut Mines-Télécom [Paris], UMR 5307 - Laboratoire Georges Friedel ( LGF-ENSMSE ), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs ( PRESSIC-ENSMSE ), Institut Mines-Télécom [Paris]-Institut Mines-Télécom [Paris]-SPIN, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne, Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Analytical chemistry, Oxide, Energy Engineering and Power Technology, 02 engineering and technology, Electrolyte, 010402 general chemistry, 01 natural sciences, 7. Clean energy, Methane, law.invention, chemistry.chemical_compound, Single chamber, law, Anode-supported cell, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, SOFC, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, Power density, Renewable Energy, Sustainability and the Environment, Open-circuit voltage, [ SPI.GPROC ] Engineering Sciences [physics]/Chemical and Process Engineering, 021001 nanoscience & nanotechnology, Direct-ethanol fuel cell, Cathode, 0104 chemical sciences, Anode, chemistry, 0210 nano-technology
Abstract

International audience; Single chamber anode-supported fuel cells are investigated under several methane-oxygen-nitrogen atmospheres at intermediate temperatures (500°C-700°C). Ce0.9Gd0.1O1.95 (CGO) is chosen as electrolyte and deposited by screen-printing onto NiO-CGO anode pellets. A cathode composed of 70 wt% La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) and 30 wt% of CGO is screen-printed onto the electrolyte. Thermogravimetric analyses of anode reduction are performed at 700 °C. Carbon deposition is observed under diluted methane but a successful reduction is obtained after an initialization under diluted methane followed by a final treatment under methane-to-oxygen ratio (Rmix) of 2. Anode-supported fuel cells are investigated regarding the working temperature and Rmix. Two types of cells are prepared with modifications of the electrolyte microstructure. For both cells tested, the Open Circuit Voltage (OCV), the power density and the fuel utilization increase when Rmix and temperature decrease. The electrolytes of both cells have a porous microstructure and the electrolyte of the second cell, with the highest thickness, brings better performances. At 600 °C for Rmix = 0.6, the maximum power density is improved from 60 for the first cell to 160 mW cm−2 for the second cell. Comparing the fuel utilization, it increases from 3% for the first cell to 6% for the second one for the same testing conditions.

Published
2013
Full Text
View/download PDF

24. Catalytic study of SOFC electrode materials in engine exhaust gas atmosphere

Author

Jean-Paul Viricelle, Bertrand Morel, Richard Laucournet, Pauline Briault, Mathilde Rieu, Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux (LITEN), Institut National de L'Energie Solaire (INES), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), CEA LITEN, Grenoble, and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Hydrogen, 020209 energy, Inorganic chemistry, LSCF, Ce0.9Gd0.1O1.95, chemistry.chemical_element, propane, 02 engineering and technology, PNO, 7. Clean energy, La0.6Sr0.4Co0.2Fe0.8O3−δ, carbon monoxide, hydrogen and water, Propene, chemistry.chemical_compound, Propane, Pr2NiO4+δ, propene, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, single chamber solid oxide fuel cell, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Partial oxidation, exhaust gas, cermet, chemistry.chemical_classification, SC-SOFC, Mechanical Engineering, Exhaust gas, carbon dioxide, 021001 nanoscience & nanotechnology, Sm0.5Sr0.5CoO3−δ, Ba0.5Sr0.5Co0.8Fe0.2O3−δ, Hydrocarbon, chemistry, 13. Climate action, Mechanics of Materials, Solid oxide fuel cell, 0210 nano-technology, oxygen, Carbon monoxide
Abstract

International audience; A single chamber solid oxide fuel cell (SC-SOFC) is a device able to produce electricity from a mixture of hydrocarbons and oxidant. An innovative application of this system would be to recover energy from exhaust gas of a thermal engine. This paper presents a study of stability and catalytic behaviour of electrode materials composing the cell in a mixture of hydrocarbons (propane, propene), oxygen, carbon monoxide, carbon dioxide, hydrogen and water corresponding to a composition of exhaust gas. A screening of four cathode materials was done, some well-known materials in literature and leading to highest performances such as La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF), Sm0.5Sr0.5CoO3−δ and Ba0.5Sr0.5Co0.8Fe0.2O3−δ and a last one Pr2NiO4+δ (PNO) very promising for conventional SOFCs. Anode material was a cermet composed of nickel and Ce0.9Gd0.1O1.95 which was also selected as the electrolyte material. Chemical stability tests and catalytic activity studies in the gas mixture were performed on the raw materials and have led to a first selection among cathodes. Two hydrocarbons/oxygen ratios (R = HC/O2) were investigated for materials tests considering the gas mixture stability at high temperature (600°C): R = 0.21 and 0.44. LSCF and PNO were considered as the most stable cathode materials, besides LSCF demonstrated a lower catalytic activity towards hydrocarbon partial oxidation than PNO especially for the R = 0.44 ratio. As for the anode side, nickel was tested regarding its catalytic activity towards hydrocarbons oxidation. It exhibited catalytic activity towards hydrocarbons partial oxidation, especially for the oxygen-lean ratio (0.44), which gradually decreased while lowering temperature from 620 to 450°C.

Published
2013
Full Text
View/download PDF

25. Electrochemical promotion of catalysis with highly dispersed Pt nanoparticles

Author

Jean-Paul Viricelle, Leonardo Lizarraga, Philippe Vernoux, Mathilde Rieu, Anastasios Kambolis, Laurence Burel, Mihalis N. Tsampas, AIR (AIR), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), +LBU, Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Procédés et REactivité des Systèmes Solide-gaz, Instrumentation et Capteurs (PRESSIC-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Laboratoire des Procédés en Milieux Granulaires (LPMG-EMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (Institut de Recherches sur la Catalyse et l'Environnement de Lyon, and UMR CNRS 5256)

Subjects
Post impregnation, Materials science, Ionic bonding, Nanotechnology, 02 engineering and technology, 010402 general chemistry, Electrochemistry, 01 natural sciences, Catalysis, Electrochemical promotion, lcsh:Chemistry, chemistry.chemical_compound, Propane, NEMCA effect, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Porosity, [CHIM.CATA]Chemical Sciences/Catalysis, 021001 nanoscience & nanotechnology, [SDE.ES]Environmental Sciences/Environmental and Society, 0104 chemical sciences, Membrane, lcsh:Industrial electrochemistry, lcsh:QD1-999, chemistry, Chemical engineering, Electrode, LSCF/GDC electrode, 0210 nano-technology, Pt nanoparticles, Faraday efficiency, lcsh:TP250-261
Abstract

Pt nanoparticles were dispersed in the porosity of a LSCF-GDC electrode interfaced on a dense GDC membrane. Small positive polarizations can strongly increase (38%-enhancement) the catalytic performance of Pt nanoparticles for propane deep oxidation at low temperatures with apparent Faradaic efficiency values up to 85. This study clearly demonstrates that the catalytic activity of metallic nanoparticles dispersed in the porosity of a mixed ionic electronic conducting electrode can be strongly electropromoted. Keywords: Electrochemical promotion, NEMCA effect, Pt nanoparticles, LSCF/GDC electrode, Post impregnation

Published
2012
Full Text
View/download PDF

26. Electrochemical promotion of propane combustion on highly dispersed Pt nanoparticles

Author

Michalis N. Tsampas, Anastasios Kambolis, Jean-Paul Viricelle, Mathilde Rieu, Philippe Vernoux, Leonardo Lizarraga, AIR (AIR), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Ionic bonding, 02 engineering and technology, [CHIM.CATA]Chemical Sciences/Catalysis, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, 7. Clean energy, [SDE.ES]Environmental Sciences/Environmental and Society, 0104 chemical sciences, Catalysis, chemistry.chemical_compound, Membrane, Chemical engineering, chemistry, Propane, Electrode, Organic chemistry, 0210 nano-technology, Porosity, Faraday efficiency
Abstract

AIR+LLI:MTS:PVE; Pt nanoparticles, in a size range which varies from 3 to 20 nm, were dispersed in the porosity of a 7.5 mu m-thick layer of LSCF-GDC electrode interfaced on a dense GDC membrane. Small positive polarizations (200 mu A / 0.8V - 1.2V) can strongly increase the Pt nanoparticles catalytic performance for propane deep oxidation at low temperatures (267 degrees C-338 degrees C). 40%-enhancement of the propane conversion was achieved with apparent Faraday efficiency values up to 85. These results clearly demonstrate that metallic nanoparticles dispersed in the porosity of a mixed ionic electronic conducting electrode can be electropromoted.

Published
2012
Full Text
View/download PDF

27. Elaboration of metallic compacts with high porosity for mechanical supports of SOFC

Author

Marie-Laure Fontaine, Pierre Jean Panteix, Florence Ansart, Pascal Lenormand, Mathilde Rieu, Philippe Tailhades, Valérie Baco-Carles, Ecole Nationale Supérieure de Chimie de Montpellier - ENSCM (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université de Montpellier 2 (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut Européen des membranes (IEM), and 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)

Subjects
Materials science, Matériaux, Oxide, Compaction, chemistry.chemical_element, Mineralogy, 02 engineering and technology, 7. Clean energy, chemistry.chemical_compound, 0203 mechanical engineering, General Materials Science, Ceramic, SOFC, Porosity, Green compact, Metallurgy, General Chemistry, Porosimetry, [CHIM.MATE]Chemical Sciences/Material chemistry, Porous metal, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 020303 mechanical engineering & transports, chemistry, visual_art, Interconnect, visual_art.visual_art_medium, Metal powder, Solid oxide fuel cell, 0210 nano-technology, Cobalt
Abstract

International audience; The development of third generation Solid Oxide Fuel Cells (SOFC) with metallic mechanical supports presents several advantages over that of ceramic stacks by offering a lower cost and longer lifetime of the stacks. As a consequence, it is necessary to prepare metallic porous compacts that remain stable at the operating temperature of the SOFC (700-800 degrees C) under reductive atmosphere. This paper presents an innovative process to elaborate iron, nickel and cobalt porous compacts. The process is based on the thermal decomposition of metal oxalate precursors with controlled morphology into metallic powders with coralline shape. Uniaxial compaction of such powders (without binder addition to the powders) under low uniaxial pressures (rising from 20 to 100 MPa) gave rise to green compacts with high porosity and good mechanical properties. After annealing at 800 degrees C under H-2 atmosphere, the compacts still present interconnected porosity high enough to allow sufficient gas flow to feed a SOFC single cell in hydrogen: the porosity rises from 25 to 50% for iron compacts, from 20 to 50% for cobalt compacts, and is higher than 40% for nickel compacts. Results from physicochemical characterization (XRD, SEM, gas permeation, Hg porosimetry) corroborated the process for SOFC application.

Published
2009
Full Text
View/download PDF

28. Preparation of Ni–YSZ thin and thick films on metallic interconnects as cell supports. Applications as anode for SOFC

Author

Julien Fullenwarth, Pascal Lenormand, Florence Ansart, Mathilde Rieu, Mohsine Zahid, Fabrice Mauvy, EDF (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux - ENSCPB (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), European Institute for Energy Research - EIFER (GERMANY), Universität Karlsruhe (GERMANY), Université de Bordeaux 1 (FRANCE), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), European Institute For Energy Research (EIFER), Universität Karlsruhe (TH)-EDF R&D (EDF R&D), EDF (EDF)-EDF (EDF), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
Materials science, Matériaux, 02 engineering and technology, Thermal treatment, Sol–gel, 010402 general chemistry, 01 natural sciences, Corrosion, Biomaterials, Coatings, Materials Chemistry, Ceramic, SOFC, Composite material, Thin film, Yttria-stabilized zirconia, Sol-gel, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 6. Clean water, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Anode, visual_art, Ceramics and Composites, Slurry, visual_art.visual_art_medium, 0210 nano-technology, Ni–YSZ
Abstract

International audience; In this work, we propose the preparation of a duplex anodic layer composed of both a thin (100 nm) and a thick film (10 μm) with Ni–YSZ material. The support of this anode is a metallic substrate, which is the interconnect of the SOFC unit cell. The metallic support limits the temperature of thermal treatment at 800 °C to keep a good interconnect mechanical behaviour and to reduce corrosion. We have chosen to elaborate anodic coatings by sol–gel route coupled with dip-coating process, which are low cost techniques and allow working with moderate temperatures. Thin films are obtained by dipping interconnect substrate into a sol, and thick films into an optimized slurry. After thermal treatment at only 800 °C, anodic coatings are adherent and homogeneous. Thin films have compact microstructures that confer ceramic protective barrier on metal surface. Further coatings of 10 μm thick are porous and constitute the active anodic material.

Published
2008
Full Text
View/download PDF

29. Introduction to Eurosensors 2017, Paris, 3–6 September 2017

Author

Christophe Pijolat, Jean-Paul Viricelle, Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Georges Friedel (LGF-ENSMSE), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Dr. Christophe Pijola, Dr. Jean-Paul Viricelle, and Dr. Mathilde Rieu

Subjects
0209 industrial biotechnology, EUROSENSORS 2017, Sensors, Printed and flexible electronics, media_common.quotation_subject, 010401 analytical chemistry, Art history, lcsh:A, 02 engineering and technology, Art, Eiffel, 01 natural sciences, 0104 chemical sciences, n/a, 020901 industrial engineering & automation, Microsystems and Nanosystems, Center (algebra and category theory), [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, lcsh:General Works, computer, Actuators, computer.programming_language, media_common
Abstract

Editorial; International audience; EUROSENSORS 2017, the XXXI edition of the conference series, was held in PARIS at UIC-P Congress Center close to the Tour Eiffel, from September 3 to 6, 2017 for the third time in France, after Toulouse 1994 and Lyon 2007. Since 1987 the EUROSENSORS Conference is a unique forum for scientists and engineers from academia, research institutes and industry to present their latest results in the field of Sensors, Actuators, Microsystems and Nanosystems. EUROSENSORS 2017 was attended by 500 participants, 85% of them came from academia and 15% from industry and research facilities. 472 submissions were received from 39 countries for peer review, all being assigned to 4 reviewers. From the accepted ones, 146 lectures (including 4 plenary talks) were selected and presented in 12 topics, with focus on “Printed and flexible electronics” and “Sensors for Factory of the future”. 247 posters were presented and displayed during the entire duration of the conference.On Sunday 3 September, EUROSENSORS SCHOOL focused on “Printed and flexible electronics” was attended by 45 persons.

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results