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Transport features in layered nickelates: correlation between structure, oxygen diffusion, electrical and electrochemical properties

hal.structure.identifierBoreskov Institute of Catalysis
hal.structure.identifierNovosibirsk State University [NSU]
dc.contributor.authorSADYKOV, V. A.
hal.structure.identifierBoreskov Institute of Catalysis
hal.structure.identifierNovosibirsk State University [NSU]
dc.contributor.authorSADOVSKAYA, E. M.
hal.structure.identifierInstitute of High Temperature Electrochemistry
hal.structure.identifierUral Federal University [Ekaterinburg] [UrFU]
dc.contributor.authorPIKALOVA, E. Yu.
hal.structure.identifierInstitute of High Temperature Electrochemistry
hal.structure.identifierUral Federal University [Ekaterinburg] [UrFU]
dc.contributor.authorKOLCHUGIN, A. A.
hal.structure.identifierUral Federal University [Ekaterinburg] [UrFU]
dc.contributor.authorFILONOVA, E. A.
hal.structure.identifierInstitute of Metallurgy
dc.contributor.authorPIKALOV, S. M.
hal.structure.identifierBoreskov Institute of Catalysis
dc.contributor.authorEREMEEV, N. F.
hal.structure.identifierBoreskov Institute of Catalysis
hal.structure.identifierNovosibirsk State University [NSU]
dc.contributor.authorISHCHENKO, A. V.
hal.structure.identifierBoreskov Institute of Catalysis
dc.contributor.authorLUKASHEVICH, A. I.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
dc.date.issued2018-04
dc.identifier.issn0947-7047
dc.description.abstractEnOxygen migration is increasingly acknowledged as playing an important role in the ionic transport in mixed conductors and influencing the electrode electrochemical performance. The aim of this work was to establish correlations between the structural and electrical properties of undoped (Ln2NiO4 + δ, Ln = La, Pr) and doped (La1.7M0.3NiO4 + δ, M = Ca, Sr, Ba, La0.85Pr0.85Ca0.3NiO4 + δ, Pr1.7Ca0.3NiO4 + δ) layered nickelates and the oxygen diffusion in these materials to determine what influences their electrochemical response. A new technique for temperature programmed isotope exchange of oxides with C18O2 in a flow reactor was applied to investigate oxygen mobility and surface reactivity in the polycrystalline powder samples which provided the means to experimentally demonstrate the appearance of two channels of oxygen migration in the doped materials via cooperative mechanism and via near-dopant position. The electrochemical performance of the electrodes based on the developed materials was found to exhibit a strong dependence on their oxygen transport characteristics.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.enSOFC cathode
dc.subject.enLn2NiO4+δ
dc.subject.enRuddlesden–Popper phase
dc.subject.enIsotope exchange
dc.subject.enElectrochemical performance
dc.title.enTransport features in layered nickelates: correlation between structure, oxygen diffusion, electrical and electrochemical properties
dc.typeArticle de revue
dc.identifier.doi10.1007/s11581-017-2279-3
dc.subject.halChimie/Matériaux
bordeaux.journalIonics
bordeaux.page1181-1193
bordeaux.volume24
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-01760920
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01760920v1
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