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dc.citation.endPage B52 -
dc.citation.number 3 -
dc.citation.startPage B48 -
dc.citation.title ELECTROCHEMICAL AND SOLID STATE LETTERS -
dc.citation.volume 12 -
dc.contributor.author Kim, Guntae -
dc.contributor.author Lee, S. -
dc.contributor.author Shin, J. Y. -
dc.contributor.author Corre, G. -
dc.contributor.author Irvine, J. T. S. -
dc.contributor.author Vohs, J. M. -
dc.contributor.author Gorte, R. J. -
dc.date.accessioned 2023-12-22T08:12:53Z -
dc.date.available 2023-12-22T08:12:53Z -
dc.date.created 2014-09-25 -
dc.date.issued 2009 -
dc.description.abstract Composites formed by infiltration of 45 wt % La(0.8)Sr(0.2)Cr(0.5)Mn(0.5)O(3) (LSCM) into a 65% porous yttria-stabilized zirconia (YSZ) scaffold were investigated in order to understand the reasons this material is able to provide excellent anode performance in solid oxide fuel cells (SOFCs). Scanning electron microscopy showed that the LSCM forms a film over the YSZ after calcination at 1473 K but that this film undergoes cracking to expose a long three-phase boundary after reduction at 1073 K. Coulometric titration demonstrated that the reduction of LSCM and La(0.8)Sr(0.2)MnO(3) occurred over a similar range of P(O(2)) and that reduction is the likely cause for film cracking. To achieve low anode impedances in humidified H(2) at 973 K, it was necessary to add a catalyst. The addition of 0.5-1 wt % Pd, Rh, or Ni was sufficient to increase the maximum power density of SOFCs with 60 mu m thick YSZ electrolytes to >500 mW/cm(2) in humidified H(2) at 973 K. The addition of either 1 wt % Fe or 5 wt % ceria also improved power densities but to a lesser extent. Finally, the use of Pt paste as the current collector increased performance to a similar extent as intentionally adding catalyst, showing the importance of using inert materials in electrode testing. -
dc.identifier.bibliographicCitation ELECTROCHEMICAL AND SOLID STATE LETTERS, v.12, no.3, pp.B48 - B52 -
dc.identifier.doi 10.1149/1.3065971 -
dc.identifier.issn 1099-0062 -
dc.identifier.scopusid 2-s2.0-58149520427 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/6448 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=58149520427 -
dc.identifier.wosid 000263154000011 -
dc.language 영어 -
dc.publisher ELECTROCHEMICAL SOC INC -
dc.title Investigation of the Structural and Catalytic Requirements for High-Performance SOFC Anodes Formed by Infiltration of LSCM -
dc.type Article -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus OXIDE FUEL-CELL -
dc.subject.keywordPlus METHANE OXIDATION -
dc.subject.keywordPlus CERIA -
dc.subject.keywordPlus PD -
dc.subject.keywordPlus PEROVSKITE -
dc.subject.keywordPlus REDUCTION -
dc.subject.keywordPlus ZIRCONIA -
dc.subject.keywordPlus CATHODES -
dc.subject.keywordPlus YSZ -
dc.subject.keywordPlus CO2 -

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