Improvement of anodic performance of Ni by additives on solid oxide fuel cells using LaGaO3 based oxide

被引：3
|
作者：
Shinagawa, M [1 ]
Ishihara, T [1 ]
Nishiguchi, H [1 ]
Takita, Y [1 ]
机构：
[1] Oita Univ, Fac Engn, Dept Appl Chem, Oita 8701192, Japan
来源：
SOLID STATE IONICS: THE SCIENCE AND TECHNOLOGY OF IONS IN MOTION | 2004年
关键词：
D O I：
10.1142/9789812702586_0016
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Effects of various additives to Ni anode on SOFC using La0.9Sr0.1Ga0.8Mg0.2O3 based oxide were investigated in this study. Among the examined additives, it was found that the addition of small amount of Fe is highly effective for increasing the anodic activity. When 5 wt% Fe was added to Ni anode, the anodic overpotential was as small as 34 mV at 873 K, 0.1A/cm(2), which is almost half of pure Ni anode. Since the estimated activation energy for anodic reaction decreased, addition of Fe to Ni seems to be effective for increasing the activity of Ni for anodic reaction. XRD measurement after power generating property suggests that added Fe was formed alloy with Ni. Consequently, this study reveals that Ni-Fe bimetal is highly active for anodic reaction of SOFCs at decreased temperature.
引用
收藏
页码：171 / 178
页数：8
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