DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jung Hyun | ko |
dc.contributor.author | Cassidy, Mark | ko |
dc.contributor.author | Irvine, John T. S. | ko |
dc.contributor.author | Bae, Joongmyeon | ko |
dc.date.accessioned | 2011-04-21T05:36:11Z | - |
dc.date.available | 2011-04-21T05:36:11Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.156, no.6, pp.682 - 689 | - |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.uri | http://hdl.handle.net/10203/23313 | - |
dc.description.abstract | Excellent area-specific-resistance (ASR) values have been exhibited by cathode materials with a Sr-doped layer perovskite type structure and therefore show themselves to be possible candidates for intermediate-temperature-operating solid oxide fuel cell (IT-SOFC, 600-800 degrees C) applications. SmBa0.5Sr0.5Co2O5+delta (SBSCO) electrode was sintered onto 10 mol % gadolinia-doped ceria (Ce0.9Gd0.1O2, CGO91) at 1000 degrees C to form symmetrical cells and exhibited an ASR value of 0.092 Omega cm(2) at 700 degrees C. The lowest ASR value was observed when the composite cathode of 50 wt % of SBSCO and 50 wt % of CGO91 (SBSCO50) was used in conjunction with an interlayer of CGO91 applied between the electrode and 8 mol % Y2O3 stabilized ZrO2 electrolyte. These were 0.12 Omega cm(2) at 600 degrees C and 0.019 Omega cm(2) at 700 degrees C, respectively. The coefficient of thermal expansion (CTE) of SBSCO was 21.9x10(-6) K-1 at 700 degrees C. However, the CTE of the composite cathode of SBSCO50 was shown to be 13.6x10(-6) K-1 at 700 degrees C, this being more compatable with the other components within the cell. | - |
dc.description.sponsorship | This work is an outcome of the projects of the development program of Core Technologies for Fuel Cells CTFC of the MinisMinistry of Knowledge Economy MKE and is supported by the second state of the Brain Korea 21 project. We also thank EPSRC and Carbon Trust for their support of this work. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELECTROCHEMICAL SOC INC | - |
dc.subject | OXIDE FUEL-CELLS | - |
dc.subject | PEROVSKITE | - |
dc.subject | CONDUCTIVITY | - |
dc.subject | TECHNOLOGY | - |
dc.subject | ELECTRODES | - |
dc.subject | ZIRCONIA | - |
dc.subject | PR | - |
dc.title | Advanced Electrochemical Properties of LnBa(0.5)Sr(0.5)Co(2)O(5+delta) (Ln=Pr, Sm, and Gd) as Cathode Materials for IT-SOFC | - |
dc.type | Article | - |
dc.identifier.wosid | 000265737600015 | - |
dc.identifier.scopusid | 2-s2.0-65549089475 | - |
dc.type.rims | ART | - |
dc.citation.volume | 156 | - |
dc.citation.issue | 6 | - |
dc.citation.beginningpage | 682 | - |
dc.citation.endingpage | 689 | - |
dc.citation.publicationname | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.identifier.doi | 10.1149/1.3110989 | - |
dc.contributor.localauthor | Bae, Joongmyeon | - |
dc.contributor.nonIdAuthor | Cassidy, Mark | - |
dc.contributor.nonIdAuthor | Irvine, John T. S. | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | barium compounds | - |
dc.subject.keywordAuthor | electrochemical electrodes | - |
dc.subject.keywordAuthor | gadolinium compounds | - |
dc.subject.keywordAuthor | praseodymium compounds | - |
dc.subject.keywordAuthor | samarium compounds | - |
dc.subject.keywordAuthor | solid oxide fuel cells | - |
dc.subject.keywordAuthor | strontium compounds | - |
dc.subject.keywordAuthor | thermal expansion | - |
dc.subject.keywordPlus | OXIDE FUEL-CELLS | - |
dc.subject.keywordPlus | PEROVSKITE | - |
dc.subject.keywordPlus | CONDUCTIVITY | - |
dc.subject.keywordPlus | TECHNOLOGY | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | ZIRCONIA | - |
dc.subject.keywordPlus | PR | - |
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