A cobalt-free perovskite-type La0.6Sr0.4Fe0.9Cr0.1O3-α cathode for proton-conducting intermediate temperature solid oxide fuel cells

被引：29
|
作者：
Ding, Zuolong [1 ]
Yang, Zhijie [1 ]
Zhao, Dongmei [1 ]
Deng, Xuli [1 ]
Ma, Guilin [1 ]
机构：
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 550卷
基金：
中国国家自然科学基金;
关键词：
Cobalt-free; Perovskite-type; Proton-conducting IT-SOFC; Conductivities; Membrane; COMPOSITE CATHODES; ELECTROLYTE; OPTIMIZATION; PERFORMANCE; PERMEATION; MEMBRANES; SOFCS;
D O I：
10.1016/j.jallcom.2012.09.107
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：
A cobalt-free perovskite-type cathode material La0.6Sr0.4Fe0.9Cr0.1O3-alpha (LSFC10) was prepared by a citric acid-nitrate process and investigated as a potential cathode material for proton-conducting intermediate-temperature solid oxide fuel cells (IT-SOFCs). The maximum conductivity of LSFC10 reached 138 S cm(-1) under oxygen at 550 degrees C. A Ni-BZCY composite anode-supported proton-conducting BaZr0.1Ce0.7Y0.2O3-alpha (BZCY) electrolyte membrane was successfully fabricated by a simple, cost-effective spin coating process. The peak power densities of the H-2/O-2 fuel cell using BZCY electrolyte membrane, Ni-BZCY composite anode and LSFC10 cathode reached 412 mW cm(-2), and the interfacial polarization resistance for the fuel cell was as low as 0.19 Omega cm(2) under open circuit conditions, at 700 degrees C. These results reveal LSFC10 is a suitable cathode material for proton-conducting IT-SOFCs. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：204 / 208
页数：5
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