Optimization of the electrochemical performance of a Ni/Ce0.9Gd0.1O2−δ-impregnated La0.57Sr0.15TiO3 anode in hydrogen
hal.structure.identifier | Key Laboratory of Functional Inorganic Material Chemistry [KLFIMC] | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | XIA, Tian | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | BRÜLL, Annelise | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | GRIMAUD, Alexis | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | FOURCADE, Sébastien | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | MAUVY, Fabrice | |
hal.structure.identifier | Key Laboratory of Functional Inorganic Material Chemistry [KLFIMC] | |
dc.contributor.author | ZHAO, Hui | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | GRENIER, Jean-Claude | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | BASSAT, Jean-Marc. | |
dc.date.issued | 2014 | |
dc.identifier.issn | 1293-2558 | |
dc.description.abstractEn | A-site deficient perovskite La0.57Sr0.15TiO3 (LSTO) materials are synthesized by a modified polyacrylamide gel route. X-ray diffraction pattern of LSTO indicates an orthorhombic structure. The thermal expansion coefficient of LSTO is 10.0 × 10−6 K−1 at 600 °C in 5%H2/Ar. LSTO shows an electrical conductivity of 2 S cm−1 at 600 °C in 3%H2O/H2. A new composite material, containing the porous LSTO backbone impregnated with small amounts of Ce0.9Gd0.1O2−δ (CGO) (3.4-8.3 wt.%) and Ni/Cu (2.0-6.3 wt.%), is investigated as an alternative anode for solid oxide fuel cells (SOFCs). Because of the substantial electro-catalytic activity of the fine and well-dispersed Ni particles on the surface of the ceramic framework, the polarization resistance of 6.3%Ni-8.3%CGO-LSTO anode reaches 0.73 Ω cm2 at 800 °C in 3%H2O/H2. In order to further improve the anodic performance, corn starch and carbon black are used as pore-formers to optimize the microstructure of anodes. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.title.en | Optimization of the electrochemical performance of a Ni/Ce0.9Gd0.1O2−δ-impregnated La0.57Sr0.15TiO3 anode in hydrogen | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.solidstatesciences.2014.06.008 | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Solid State Sciences | |
bordeaux.page | 1-9 | |
bordeaux.volume | 35 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-01044840 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
dc.subject.it | Strontium titanate | |
dc.subject.it | Impregnation | |
dc.subject.it | Anode materials | |
dc.subject.it | Solid oxide fuel cells | |
dc.subject.it | Electrochemical performance | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-01044840v1 | |
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