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dc.citation.endPage 20818 -
dc.citation.number 35 -
dc.citation.startPage 20812 -
dc.citation.title INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -
dc.citation.volume 39 -
dc.contributor.author Kim, Changmin -
dc.contributor.author Kim, Junyoung -
dc.contributor.author Shin, Jeeyoung -
dc.contributor.author Kim, Guntae -
dc.date.accessioned 2023-12-22T02:06:21Z -
dc.date.available 2023-12-22T02:06:21Z -
dc.date.created 2014-08-14 -
dc.date.issued 2014-12 -
dc.description.abstract A composite cathode composed of NdBa0.5Sr0.5Co1.5Fe0.5O5+δ (ΝΒSCF) and Ce0.9Gd0.1O1.95 (GDC) has been investigated to evaluate its electrochemical properties for intermediate-temperature solid oxide fuel cells (IT-SOFCs) based on structural characteristics and oxygen redox stability. The composite cathode has a lower polarization loss than a pure NBSCF cathode because the specific addition of GDC provides extended electrochemically active sites where the oxygen reduction reaction (ORR) occurs. Accordingly, the optimized NBSCF-40GDC cathode material had the lowest ASR, 0.074Wcm2 at 873K, resulting in excellent cell performance of 1.83Wcm-2 at 873K. In particular, investigation into the oxygen redox stability reveals that the composite cathode has superior redox stability under the operating conditions than a bulk NBSCF cathode material, which affects the long-term stability of the cathode performance. -
dc.identifier.bibliographicCitation INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.35, pp.20812 - 20818 -
dc.identifier.doi 10.1016/j.ijhydene.2014.07.007 -
dc.identifier.issn 0360-3199 -
dc.identifier.scopusid 2-s2.0-84913622513 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5446 -
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0360319914019181?via%3Dihub -
dc.identifier.wosid 000347017200110 -
dc.language 영어 -
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD -
dc.title Effects of composite cathode on electrochemical and redox properties for intermediate-temperature solid oxide fuel cells -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Electrochemistry; Energy & Fuels -
dc.relation.journalResearchArea Chemistry; Electrochemistry; Energy & Fuels -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Composite cathode -
dc.subject.keywordAuthor Electrochemical performance -
dc.subject.keywordAuthor Layered perovskite -
dc.subject.keywordAuthor Solid oxide fuel cells (SOFC) -

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