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Optimization of the electrochemical performance of a Ni/Ce0.9Gd0.1O2−δ-impregnated La0.57Sr0.15TiO3 anode in hydrogen

hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorXIA, Tian
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBRÜLL, Annelise
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGRIMAUD, Alexis
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOURCADE, Sébastien
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAUVY, Fabrice
hal.structure.identifierKey Laboratory of Functional Inorganic Material Chemistry [KLFIMC]
dc.contributor.authorZHAO, Hui
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGRENIER, Jean-Claude
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
dc.date.issued2014
dc.identifier.issn1293-2558
dc.description.abstractEnA-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.isoen
dc.publisherElsevier
dc.title.enOptimization of the electrochemical performance of a Ni/Ce0.9Gd0.1O2−δ-impregnated La0.57Sr0.15TiO3 anode in hydrogen
dc.typeArticle de revue
dc.identifier.doi10.1016/j.solidstatesciences.2014.06.008
dc.subject.halChimie/Matériaux
bordeaux.journalSolid State Sciences
bordeaux.page1-9
bordeaux.volume35
bordeaux.peerReviewedoui
hal.identifierhal-01044840
hal.version1
hal.popularnon
hal.audienceInternationale
dc.subject.itStrontium titanate
dc.subject.itImpregnation
dc.subject.itAnode materials
dc.subject.itSolid oxide fuel cells
dc.subject.itElectrochemical performance
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01044840v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Sciences&rft.date=2014&rft.volume=35&rft.spage=1-9&rft.epage=1-9&rft.eissn=1293-2558&rft.issn=1293-2558&rft.au=XIA,%20Tian&BR%C3%9CLL,%20Annelise&GRIMAUD,%20Alexis&FOURCADE,%20S%C3%A9bastien&MAUVY,%20Fabrice&rft.genre=article


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