Ba0.5Sr0.5Zn0.2Fe0.8O3-δ perovskite oxide as a novel cathode for intermediate-temperature solid-oxide fuel cells

被引：52
|
作者：
Wei, Bo
Lue, Zhe
Huang, Xiqiang
Liu, Zhiguo
Miao, Jipeng
Li, Na
Su, Wenhui [1 ]
机构：
[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Dept Phys, Harbin 150080, Peoples R China
[2] Jilin Univ, Dept Phys, Changchun 130023, Peoples R China
[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2007年 / 90卷 / 10期
关键词：
D O I：
10.1111/j.1551-2916.2007.01930.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A cobalt-free perovskite oxide, Ba0.5Sr0.5Zn0.2Fe0.8O3-delta (BSZF), was investigated as a novel cathode material for intermediate-temperature solid-oxide fuel cells (IT-SOFCs). Room-temperature nonstoichiometry of BSZF was as high as 0.412, which was favorable for oxygen-reduction reaction. At 700 degrees C, the polarization resistances were as low as 0.22 and 0.13 Omega.cm(2), respectively, for pure and impregnated BSZF cathodes under open-circuit conditions, suggesting that oxygen-deficient BSZF was a promising cathode candidate for IT-SOFCs.
引用
收藏
页码：3364 / 3366
页数：3
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