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Oxygen diffusion and transport properties in non-stoichiometric Ln2−xNiO4+δ oxides

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBOEHM, Emmanuelle
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDORDOR, Patrice
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.identifierEuropean Institute For Energy Research [EIFER]
dc.contributor.authorSTEVENS, Philippe
dc.date.issued2005
dc.identifier.issn0167-2738
dc.description.abstractEnMaterials formulated Ln2−x−yyCaxNiO4+δ (with (i) x = y = 0 for Ln = La, Pr, Nd, (ii) x ≠ 0 when y = 0 or y ≠ 0 when x = 0 for Ln = Nd) have been prepared and characterized using various techniques with respect to their mixed ionic/electronic conducting properties. These oxides exhibit high electronic conductivity (≈ 100 S cm− 1 at T = 700 °C) as well as high values of oxygen diffusion and surface exchange coefficients (D* and k, determined using SIMS analysis of the 18O isotope). The oxygen diffusion performances of Pr2NiO4+δ are the highest ones among those of the studied compounds. Interestingly, in the Nd-series they are slightly improved by the creation of Nd vacancies, while they are affected by the substitution of Nd by Ca.
dc.language.isoen
dc.publisherElsevier
dc.subject.enMixed conducting oxides
dc.subject.enOxygen transport properties
dc.subject.enOxygen reduction
dc.subject.enRare-earth nickelates
dc.subject.enSOFC
dc.title.enOxygen diffusion and transport properties in non-stoichiometric Ln2−xNiO4+δ oxides
dc.typeArticle de revue
dc.identifier.doi10.1016/j.ssi.2005.06.033
dc.subject.halChimie/Matériaux
bordeaux.journalSolid State Ionics
bordeaux.page2717-2725
bordeaux.volume176
bordeaux.issue37-38
bordeaux.peerReviewedoui
hal.identifierhal-00019259
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00019259v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Ionics&rft.date=2005&rft.volume=176&rft.issue=37-38&rft.spage=2717-2725&rft.epage=2717-2725&rft.eissn=0167-2738&rft.issn=0167-2738&rft.au=BOEHM,%20Emmanuelle&BASSAT,%20Jean-Marc.&DORDOR,%20Patrice&MAUVY,%20Fabrice&GRENIER,%20Jean-Claude&rft.genre=article


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