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Kim, Guntae
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Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, PEMFC, metal-air batteries, Metal-CO2 system, Catalyst for DRM

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Effects of composite cathode on electrochemical and redox properties for intermediate-temperature solid oxide fuel cells

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dc.contributor.author Kim, Changmin ko
dc.contributor.author Kim, Junyoung ko
dc.contributor.author Shin, Jeeyoung ko
dc.contributor.author Kim, Guntae ko
dc.date.available 2014-08-20T00:21:50Z -
dc.date.created 2014-08-14 ko
dc.date.issued 2014-12 ko
dc.identifier.citation INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.35, pp.20812 - 20818 ko
dc.identifier.issn 0360-3199 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5446 -
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. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD ko
dc.title Effects of composite cathode on electrochemical and redox properties for intermediate-temperature solid oxide fuel cells ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84913622513 ko
dc.identifier.wosid 000347017200110 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-08-14 *
dc.identifier.doi 10.1016/j.ijhydene.2014.07.007 ko
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0360319914019181?via%3Dihub ko
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