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Influence of Electrode Potential on Oxygen Mobility Probed by Polarized Isotopic Exchange in Solid Oxide Electrolyser Cells: Insights for Electro-Assisted Oxidation Reactions

hal.structure.identifierInstitut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
dc.contributor.authorMANON, Alexandre
hal.structure.identifierInstitut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
dc.contributor.authorNAU, Alexandre
hal.structure.identifierInstitut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
dc.contributor.authorBELIN, Thomas
hal.structure.identifierInstitut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
hal.structure.identifierUniversité de Poitiers – Faculté de Sciences fondamentales et appliquées [UFR SFA [Poitiers]]
dc.contributor.authorMAZURIER, Arnaud
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
hal.structure.identifierInstitut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
dc.contributor.authorBION, Nicolas
hal.structure.identifierInstitut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
dc.contributor.authorCOMMINGES, Clément
dc.date2024-02-09
dc.date.issued2024-02-09
dc.identifier.issn1867-3899
dc.description.abstractEnOxygen mobility was studied by oxygen isotopic exchange on three electrodes used in Solid Oxide Electrolyser Cells under polarization (La0.8Sr0.2MnO3 (LSM), La0.6Sr0.4Co0.2Fe0.8O3- (LSCF) and La2NiO4+ (LNO)). The rate of the surface and the bulk mechanisms for oxygen mobility is depending on the type of conductivity (electronic conduction or mixed ionic and electronic conductivity). It is shown that a one oxygen atom exchange is dominant for the surface path whereas a two oxygen atoms mechanism dominates for the bulk path. The rate constant for the bulk path is much higher than the one for the surface path by two orders of magnitude. Additionally, polarized oxygen isotopic exchange revealed that electrode overvoltage increases significantly the rate constant for the surface path, whereas its impact on the bulk path is negligible.
dc.description.sponsorshipPoitiers Graduate School on physico-chemical properties of INTerfaces for AeRonautic, Energy and Environment - ANR-18-EURE-0010
dc.description.sponsorshipCouplage Catalyse et Electrolyse Haute Température pour la production d'Ethylène à partir de CO2 - ANR-20-CE05-0023
dc.language.isoen
dc.publisherWiley
dc.title.enInfluence of Electrode Potential on Oxygen Mobility Probed by Polarized Isotopic Exchange in Solid Oxide Electrolyser Cells: Insights for Electro-Assisted Oxidation Reactions
dc.typeArticle de revue
dc.identifier.doi10.1002/cctc.202301616
dc.subject.halChimie/Chimie analytique
dc.subject.halChimie/Catalyse
dc.subject.halChimie/Autre
dc.subject.halPhysique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
bordeaux.journalChemCatChem
bordeaux.peerReviewedoui
hal.identifierhal-04454643
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04454643v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ChemCatChem&rft.date=2024-02-09&rft.eissn=1867-3899&rft.issn=1867-3899&rft.au=MANON,%20Alexandre&NAU,%20Alexandre&BELIN,%20Thomas&MAZURIER,%20Arnaud&BASSAT,%20Jean-Marc.&rft.genre=article


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