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dc.contributor.authorMyung, Jaeha
dc.contributor.authorShin, Tae Ho
dc.contributor.authorHuang, Xiubing
dc.contributor.authorCarins, George Michael
dc.contributor.authorIrvine, John Thomas Sirr
dc.date.accessioned2015-06-11T13:40:02Z
dc.date.available2015-06-11T13:40:02Z
dc.date.issued2015-09-21
dc.identifier.citationMyung , J , Shin , T H , Huang , X , Carins , G M & Irvine , J T S 2015 , ' Enhancement of redox stability and electrical conductivity by doping various metals on ceria, Ce 1-x M x O 2-δ (M=Ni, Cu, Co, Mn, Ti, Zr) ' , International Journal of Hydrogen Energy , vol. 40 , no. 35 , pp. 12003-12008 . https://doi.org/10.1016/j.ijhydene.2015.05.029en
dc.identifier.issn0360-3199
dc.identifier.otherPURE: 186915490
dc.identifier.otherPURE UUID: 6def57e1-d745-49f9-ab6f-9a9c045b4b40
dc.identifier.otherScopus: 84955460062
dc.identifier.otherWOS: 000361404500086
dc.identifier.otherORCID: /0000-0002-8394-3359/work/68280587
dc.identifier.urihttps://hdl.handle.net/10023/6807
dc.descriptionThis work was supported by EPSRC (EP/I022570/1, EP/K015540/1, EP/I038950/1, EP/K021036/1).en
dc.description.abstractVarious metal oxide materials have been actively investigated to improve energy efficiency as exhaust-catalyst as well as electrodes in electrochemical devices such as fuel cells, ceramic sensors, photo-catalyst etc. Ceria-based materials are of great interest due to their wide applications; such as redox or oxygen storage promoter in automotive catalyst and solid state conductor in fuel cells. Here we report redox and electrical properties for Ce1-xMxO2-δ (M=Ni, Cu, Co, Mn, Ti, Zr) by X-ray diffraction (XRD) and simultaneous thermo-gravimetric analysis (TGA). Among various system, Ce1-xCuxO2-δ and Ce1-xNixO2-δ indicated relatively reversible redox behavior, although Cu2+ and Ni2+ had limited solid solubility in CeO2. The enhancement of oxygen carrier concentration and electrical conductivity as well as electrochemical activity in the ceria lattice by the introduction of small amounts transition metal cations have been considered in this study. Ce0.7Cu0.3O2-δ showed about 1015 μmol[O2]/g of oxygen storage capacity (OSC) with high redox stability at 700oC. We also demonstrated that Ce0.9Ni0.1O2-δ was used as an anode of the YSZ electrolyte supported SOFC single cell; the maximum power density was 0.15 W/cm2 at 850oC with hydrogen fuel.
dc.language.isoeng
dc.relation.ispartofInternational Journal of Hydrogen Energyen
dc.rightsCopyright © 2015, The Authors. Published by Elsevier Ltd on behalf of Hydrogen Energy Publications, LLC. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en
dc.subjectCeriaen
dc.subjectRedox stabilityen
dc.subjectElectrical conductivityen
dc.subjectOxide anodeen
dc.subjectSolid oxide fuel cellen
dc.subjectQD Chemistryen
dc.subjectNDASen
dc.subjectSDG 7 - Affordable and Clean Energyen
dc.subject.lccQDen
dc.titleEnhancement of redox stability and electrical conductivity by doping various metals on ceria, Ce1-xMxO2-δ (M=Ni, Cu, Co, Mn, Ti, Zr)en
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
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.ijhydene.2015.05.029
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/I022570/1en
dc.identifier.grantnumberEP/I038950/1en
dc.identifier.grantnumberEP/K021036/1en
dc.identifier.grantnumberEP/K015540/1en
dc.identifier.grantnumberEP/I022570/1en


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