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dc.citation.endPage 656 -
dc.citation.number 2 -
dc.citation.startPage 651 -
dc.citation.title JOURNAL OF THE AMERICAN CERAMIC SOCIETY -
dc.citation.volume 97 -
dc.contributor.author Kim, Junyoung -
dc.contributor.author Jun, Areum -
dc.contributor.author Shin, Jeeyoung -
dc.contributor.author Kim, Guntae -
dc.date.accessioned 2023-12-22T03:06:51Z -
dc.date.available 2023-12-22T03:06:51Z -
dc.date.created 2014-09-25 -
dc.date.issued 2014-02 -
dc.description.abstract Layered perovskite cathode materials have received considerable attention for intermediate temperature solid oxide fuel cells (IT-SOFCs) because of their fast oxygen ion diffusion through pore channels and high catalytic activity toward the oxygen reduction reaction (ORR) at low temperatures. In this study, we have investigated the effects of Fe substitution for the Co site on electrical and electrochemical properties of a layered perovskite, GdBa0.5Sr0.5Co2-xFexO5+delta (x=0, 0.5, and 1.0), as a cathode material for IT-SOFCs. Furthermore, electrochemical properties of GdBa0.5Sr0.5CoFeO5+delta-yGDC (y=0, 20, 40, and 50 wt%) cathodes were evaluated to determine the optimized cell performance. At a given temperature, the electrical conductivity and the area-specific resistances (ASRs) of GdBa0.5Sr0.5Co2-x FexO5+delta decrease with Fe content. The lowest ASR of 0.067 Omega center dot cm(2) was obtained at 873K for the GdBa0.5Sr0.5CoFeO5+delta. The GdBa0.5Sr0.5CoFeO5+delta composite with 40 wt% GDC was identified as an optimum cathode material, showing the highest maximum power density (1.31 W/cm(2)) at 873 K, and other samples also showed high power density over 1.00 W/cm(2). -
dc.identifier.bibliographicCitation JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.97, no.2, pp.651 - 656 -
dc.identifier.doi 10.1111/jace.12692 -
dc.identifier.issn 0002-7820 -
dc.identifier.scopusid 2-s2.0-84893980412 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/6420 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84893980412 -
dc.identifier.wosid 000330684200047 -
dc.language 영어 -
dc.publisher WILEY-BLACKWELL -
dc.title Effect of Fe Doping on Layered GdBa0.5Sr0.5Co2O5+delta Perovskite Cathodes for Intermediate Temperature Solid Oxide Fuel Cells -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Materials Science, Ceramics -
dc.relation.journalResearchArea Materials Science -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -

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