Performance of Ba0.5Sr0.5Co0.8Fe0.2O3-δ-CGO-Ag cathode for IT-SOFCs

被引：0
|
作者：
Wang, Yuansong [1 ]
Wang, Shaorong [1 ]
Wang, Zhenrong [1 ]
Wen, Tinglian [1 ]
Wen, Zhaoyin [1 ]
机构：
[1] Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, China
来源：
Journal of Alloys and Compounds | 2007年 / 428卷 / 1-2期
关键词：
Single phase Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) was synthesized successfully at 1000 °C by solid reaction method. The dependence of thermal expansion and electrical conductivity on temperatures were studied. Electrochemical properties of pure BSCF cathode and BSCF + CGO (20 mol% Gd2O3-doped CeO2) composite cathode on CGO electrolyte at intermediate temperatures were investigated by using AC impedance analyzer. Additionally; a composite cathode of BSCF containing 30 wt.% CGO and a small quantity of Ag was prepared and studied; which shows the lowest area specific resistance (2 at temperatures higher than 700 °C); being a high potential candidate of cathode for intermediate temperature SOFCs (IT-SOFCs; working at 800 °C or lower temperatures). © 2006 Elsevier B.V. All rights reserved;
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页码：286 / 289
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