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题名: A study of LSM-YSZ composite cathodes by AC impedance and polarization
作者: Lu, ZG;  Jiang, Y;  Dong, YL;  Zhang, YH;  Yan, JW
关键词: solid oxide fuel cell ;  composite la (MnO4)(3) cathode ;  YSZ electrolyte
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2001-05-01
卷: 22, 期:5, 页:791-795
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: A series of composite cathodes with various YSZ additions;were investigated by AC impedance, polarization and conductivity measurement. The electrochemical performance of the cathodes was improved by increasing the YSZ addition, and the optimal YSZ addition for the lowest electrode resistance (1.18 Omega/ cm(2)) was found to be 40%. The rate-determining step of the cathode reaction varied when YSZ was added into the LSM electrode. The contact resistance increased as YSZ addition increased. By applying a layer of platinum on the cathode as a current collecting layer, the contact resistance decreased significantly , and the electrode resistance at 1223 K dropped remarkably from 1.18 Omega /cm(2) to 0.41 Omega /cm(2).
关键词[WOS]: OXIDE FUEL-CELLS ;  ELECTRODES ;  ZIRCONIA
语种: 英语
WOS记录号: WOS:000168930400021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138977
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Lu, ZG,Jiang, Y,Dong, YL,et al. A study of LSM-YSZ composite cathodes by AC impedance and polarization[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2001,22(5):791-795.
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