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Lanthanum nickelate as an efficient oxygen electrode for solid oxide electrolysis cell

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAUVY, Fabrice
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGRENIER, Jean-Claude
hal.structure.identifierDirection des Applications Militaires [DAM]
dc.contributor.authorVULLIET, Julien
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROUGIER, Aline
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
dc.date.issued2022
dc.identifier.issn1615-6846
dc.description.abstractEnThe present study focuses on an alternative structured oxygen electrode for solid oxide electrolysis cell (SOEC). La2NiO4+δ nickelate, LNO, was selected with respect to its mixed electronic and ionic conductivity and its good chemical stability. Complete single cells were built using screen printing of LNO and LaNi0.6Fe0.4O3 (LNF) layers on a standard hydrogen electrode supported half cell consisting of a porous NiO-YSZ layer, a dense 8YSZ electrolyte layer and a thin interlayer of GDC. The LNO cells polarization curves under various anodic flows of H2O/H2 (90/10) show excellent performances compared to the commercial LSCF (La0.6Sr0.4Co0.2Fe0.8O3-x) based cells. The steam conversion ratio SC increases from around 40% to 80% when the gas flow decreases from 36 to 12 NmL min-1 cm-2. With a degradation rate of 1.5% 1,000 hrs-1 after 500 hrs operating time (i =-0.5 A cm-2) at 800 °C, using a medium H2O/H2 (90/10) gas flow of 24 NmL min-1 cm-2 , LNO oxygen electrode shows higher durability than the state of the art LSCF oxygen electrode. Energy efficiency analysis confirms the dependency of the total efficiency with the current density and gas flow allowing us to suggest optimized conditions for reaching targets of commercial H2 production.
dc.description.sponsorshipoptimisation Des Jonctions ANode/électrolyte et cathode/électrolyte des Générateurs d'hydrOgène par électrolyse de la vapeur d'eau - ANR-13-PRGE-0008
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.enlanthanum nickelate
dc.subject.enoxygen electrode
dc.subject.enSolid Oxide Electrolysis Cell
dc.subject.enaging
dc.subject.enenergy efficiency
dc.title.enLanthanum nickelate as an efficient oxygen electrode for solid oxide electrolysis cell
dc.typeArticle de revue
dc.identifier.doi10.1002/fuce.202200013
dc.subject.halChimie/Matériaux
bordeaux.journalFuel Cells
bordeaux.page48-56
bordeaux.volume22
bordeaux.issue1-2
bordeaux.peerReviewedoui
hal.identifierhal-03648317
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03648317v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Fuel%20Cells&rft.date=2022&rft.volume=22&rft.issue=1-2&rft.spage=48-56&rft.epage=48-56&rft.eissn=1615-6846&rft.issn=1615-6846&rft.au=MAUVY,%20Fabrice&GRENIER,%20Jean-Claude&VULLIET,%20Julien&ROUGIER,%20Aline&BASSAT,%20Jean-Marc.&rft.genre=article


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