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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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Growth of thin-film layered perovskite cathodes by pulsed laser deposition and their electrochemical studies in IT-SOFCs

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dc.contributor.author Ju, Young-Wan ko
dc.contributor.author Jun, Areu ko
dc.contributor.author Inoishi, Atsushi ko
dc.contributor.author Ida, Shintaro ko
dc.contributor.author Lim, Tak-hyoung ko
dc.contributor.author Kim, Guntae ko
dc.contributor.author Ishihara, Tatsumi ko
dc.date.available 2014-09-23T07:04:40Z -
dc.date.created 2014-09-18 ko
dc.date.issued 2014-06 ko
dc.identifier.citation JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.161, no.6, pp.F698 - F702 ko
dc.identifier.issn 0013-4651 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/6353 -
dc.description.abstract Layered perovskites have attracted abundant interest as advanced cathode materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs) due to their high electrical conductivity and excellent catalytic properties for the oxygen reduction reaction (ORR). However, cobalt related layer perovskite oxides generally suffer from larger thermal expansion co-efficiency (TEC) than that of electrolyte materials. In this study, we have prepared a thin interlayer, SmBa0.5Sr0.5Co2O5+delta (SBSCO) layered perovskite, via pulsed laser deposition (PLD) on a Sr- and Mg- doped LaGaO3 (LSGM) thin film electrolyte to prevent the formation of a micro-gap arising from the thermal mismatch between the SBSCO cathode and LSGM electrolyte. A Samaria-doped ceria (SDC) buffer layer was prepared between the cathodic interlayer and LSGM electrolyte in order to prevent interdiffusion of cations. The cathodic interlayer of SBSCO is helpful for overcoming the thermal mismatch between the SBSCO powder cathode and the LSGM electrolyte, and also shows high power generating properties and small area specific resistance under typical fuel cell operating conditions. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELECTROCHEMICAL SOC INC ko
dc.title Growth of thin-film layered perovskite cathodes by pulsed laser deposition and their electrochemical studies in IT-SOFCs ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84904823653 ko
dc.identifier.wosid 000339508600087 ko
dc.type.rims ART ko
dc.description.wostc 1 *
dc.description.scopustc 0 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-09-18 *
dc.identifier.doi 10.1149/2.020406jes ko
dc.identifier.url http://jes.ecsdl.org/content/161/6/F698 ko
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