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dc.contributor.authorPapargyriou, Despoina
dc.contributor.authorIrvine, John Thomas Sirr
dc.date.accessioned2016-05-03T11:30:04Z
dc.date.available2016-05-03T11:30:04Z
dc.date.issued2016-05
dc.identifier.citationPapargyriou , D & Irvine , J T S 2016 , ' Nickel nanocatalyst exsolution from (La,Sr) (Cr,M, Ni)O 3 (M=Mn, Fe) perovskites for the fuel oxidation layer of Oxygen Transport Membranes ' , Solid State Ionics , vol. 288 , pp. 120-123 . https://doi.org/10.1016/j.ssi.2015.11.007en
dc.identifier.issn0167-2738
dc.identifier.otherPURE: 230448849
dc.identifier.otherPURE UUID: 39977eb1-629a-446c-98c6-f0ea8afde0fc
dc.identifier.otherScopus: 84949512431
dc.identifier.otherWOS: 000376710900023
dc.identifier.otherORCID: /0000-0002-8394-3359/work/68280806
dc.identifier.urihttps://hdl.handle.net/10023/8713
dc.descriptionFunding: EPSRC: EP/K015540/1, Royal Society: WRMA 2012/R2, Praxair.en
dc.description.abstractLa0.75Sr0.25Cr0.5Mn0.5O3 (LSCM) and La0.75Sr0.25Cr0.5Fe0.5O3 (LSCF) perovskites with partial substitution of the B-site by 5mol% of Ni were synthesized and characterized for the fuel oxidation layer of Oxygen Transport Membranes (OTMs). X-ray diffraction showed that single phase compounds were obtained at 1300oC. LSCM exhibits a rhombohedral structure and LSCF an orthorhombic structure. Both materials retain their structures, after doping the B site with Ni, with small changes on the unit cell parameters. Thermal analysis under reducing conditions was used to investigate the reducibility of these perovskites up to 900oC, which appears to be enhanced by doping with Ni. The formation of Ni nanoparticles (30-50nm) on the LSCM-Ni and LSCF-Ni grains was observed by scanning electron microscopy, after reducing the samples in 5% H2/Ar at 900oC, indicating possible enhanced catalytic activity and potential benefits for the development of the OTMs. DC Conductivity measurements conducted under a redox cycle, indicate that LSCFNi presents a better redox stability than LSCMNi.
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofSolid State Ionicsen
dc.rights© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.subjectPerovskitesen
dc.subjectExsolutionen
dc.subjectCatalysten
dc.subjectFuel oxidation layeren
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleNickel nanocatalyst exsolution from (La,Sr) (Cr,M, Ni)O3 (M=Mn, Fe) perovskites for the fuel oxidation layer of Oxygen Transport Membranesen
dc.typeJournal articleen
dc.contributor.sponsorThe Royal Societyen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1016/j.ssi.2015.11.007
dc.description.statusPeer revieweden
dc.identifier.grantnumberWRMA 2012/R2en
dc.identifier.grantnumberEP/K015540/1en
dc.identifier.grantnumberEP/J018139/1en


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