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Comprehensive Study of Oxygen Storage in YbFe2O4+x (x ≤ 0.5): Unprecedented Coexistence of FeOn Polyhedra in One Single Phase

hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorNICOUD, Sarah
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorHUVÉ, Marielle
hal.structure.identifierInstitut des Sciences Chimiques de Rennes [ISCR]
dc.contributor.authorHERNANDEZ, Olivier
hal.structure.identifierLaboratoire de cristallographie et sciences des matériaux [CRISMAT]
dc.contributor.authorPAUTRAT, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierMatériaux, Rayonnements, Structure [NEEL - MRS]
dc.contributor.authorCOLIN, Claire
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorKABBOUR, Houria
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorMENTRÉ, Olivier
dc.date.issued2017-11-29
dc.identifier.issn0002-7863
dc.description.abstractEnThe multiferroic LuFeO was recently proposed as a promising material for oxygen storage due to its easy reversible oxidation into LuFeO. We have investigated the similar scenario in YbFeO, leading to a slightly greater oxygen storage (OSC) capacity of 1434 μmol O/g. For the first time, the structural model of LnFeO was fully understood by high-resolution microscopy images, and synchrotron and neutron diffraction experiments, as well as maximum entropy method. The oxygen uptake promotes a reconstructive shearing of the [YbO] sub-units controlled by the adaptive Ln/Fe oxygen coordination and the Fe redox. After oxidation, the rearrangement of the Fe coordination polyhedra is unique such that all available FeO units (n = 6, 5, 4 in octahedra, square pyramids, trigonal bipyramids, tetrahedra) were identified in modulated rows growing in plane. This complex pseudo-ordering gives rise to short-range antiferromagnetic correlation within an insulating state.
dc.description.sponsorshipCouplages Magnéto-Electriques exacerbés dans des matériaux à unités ferromagnétiques
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enCrystal structure
dc.subject.enOxidation
dc.subject.enPhysical and chemical processes
dc.subject.enLayers
dc.subject.enOxygen
dc.title.enComprehensive Study of Oxygen Storage in YbFe2O4+x (x ≤ 0.5): Unprecedented Coexistence of FeOn Polyhedra in One Single Phase
dc.typeArticle de revue
dc.identifier.doi10.1021/jacs.7b06409
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of the American Chemical Society
bordeaux.page17031-17043
bordeaux.volume139
bordeaux.issue47
bordeaux.peerReviewedoui
hal.identifierhal-01652704
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01652704v1
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