Enhanced chromium tolerance of La0.6Sr0.4Co0.2Fe0.8O3 - δ electrode of solid oxide fuel cells by Gd0.1Ce0.9O1.95 impregnation

被引：55
|
作者：
Zhao, Ling [1 ,2 ]
Amarasinghe, Sudath [3 ]
Jiang, San Ping [1 ,2 ]
机构：
[1] Curtin Univ, Fuels & Energy Technol Inst, Perth, WA 6102, Australia
[2] Curtin Univ, Dept Chem Engn, Perth, WA 6102, Australia
[3] Ceram Fuel Cells Ltd, Nobel Pk, Vic 3174, Australia
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2013年 / 37卷
基金：
澳大利亚研究理事会;
关键词：
Solid oxide fuel cells; LSCF cathodes; Chromium tolerance; GDC impregnation; SOFC CATHODES; DEPOSITION; MECHANISM;
D O I：
10.1016/j.elecom.2013.10.019
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical activities and chromium tolerances are studied on single phase La0.6Sr0.4Co0.2Fe0.8O3 (-) (delta) (LSCF) and Cd0.1Ce0.9O1.95 (CDC) impregnated LSCF (GDC-LSCF) cathodes of solid oxide fuel cells (SOFCs). GDC-LSCF electrode shows a significantly reduced electrode polarization resistance and more stable performance for the O-2 reduction reaction in the presence of chromia-forming metallic interconnect as compared to that on LSCF. The results indicate that the impregnated GDC nanoparticles serve as a barrier layer to enhance the resistance and tolerance of LSCF towards chromium deposition and poisoning. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：84 / 87
页数：4
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