CHEMICAL STABILITY OF Ba0.5Sr0.5Co0.8Fe0.2O3-δ UNDER DIFFERENT OXYGEN PARTIAL PRESSURE

被引：0
作者：
Wang, Fang [1 ]
Yashiro, Keiji [1 ]
Amezawa, Koji [1 ]
Mizusaki, Junichiro [1 ]
机构：
[1] Tohoku Univ, IMRAM, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
来源：
Solid State Ionics: Ionics for Sustainable World | 2013年
基金：
日本学术振兴会;
关键词：
OXIDE FUEL-CELLS; PHASE-STABILITY; PERFORMANCE; CATHODE;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) is an outstanding material for cathode materials of solid oxide fuel cells (SOFCs). However the chemical stability of BSCF is still not well-understood. In this paper, in situ HT-XRD measurement was performed as a function of temperature and oxygen partial pressure, p(O-2), to evaluate the chemical stability window of BSCF. The results inferred the phase transition of BSCF produced two kinds of impurity phases coexisted with BSCF at 800 degrees C in the relatively higher p(O-2).
引用
收藏
页码：228 / 234
页数：7
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