Sr2NiMoO6-δ as anode material for LaGaO3-based solid oxide fuel cell

被引：70
|
作者：
Wei, Tao [1 ]
Ji, Yuan [1 ]
Meng, Xiangwei [1 ]
Zhang, Yanlei [1 ]
机构：
[1] Jilin Univ, Coll Phys, Changchun 130023, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 09期
基金：
中国国家自然科学基金;
关键词：
fuel cells; anode; double perovskite; thermal expansion; electrochemical performance;
D O I：
10.1016/j.elecom.2008.07.005
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The double-perovskite Sr2NiMoO6-delta (SNMO) was investigated as an anode material of a solid oxide fuel cell (SOFC). With a 300 mu m thick La0.9Sr0.1Ga0.8Mg0.2O3-sigma (LSGM) disk as electrolyte and Ba0.5Sr0.5Co0.8Fe0.2O3-delta as the cathode, the SNMO anode showed power densities of 819 mW cm(-2) in hydrogen at 1123 K. Moreover, there was no buffer layer between anode and electrolyte, which would reduce design techniques and save design cost. After test no chemical reaction was discovered between anode and electrolyte. The anode exhibited good conductivity and the value was around 60 S cm(-1) in H-2. Also it had almost linear thermal expansion from room temperature to 1253 K and the average thermal expansion coefficient was about 12.14 x 10(-6) K-1, which was quite close to that of La0.9Sr0.1Ga0.8Mg0.2O3 (12.17 x 10(-6) K-1) electrolyte. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1369 / 1372
页数：4
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