熔渗法制备固体氧化燃料电池 LaNi_(0.6)Fe_(0.4)O_(3-delta)基纳米复合阴极在开路条件下的铬中毒

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作者Choe Yeongju ; Seo Jeonguk ; Lee Kyoungjin ; Lee Minjin ; Hwang Haejin
单位Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea;Department of Materials Science and Engineering,Inha,Incheon,22212,Korea.收起
关键词铬中毒 ; 钙钛矿 ; 熔渗 ; 固体氧化燃料电池
来源中国有色金属学报
出版年2016
期号第5期
摘要
利用甘氨酸-硝酸盐方法合成LaNi_(0.6)Fe_(0.4)O_(3-delta)(LNF)粉末,采用LNF多孔主干熔渗法制备掺杂二氧化铈LN F-钆(GDC)固体氧化燃料电池纳米复合阴极。研究了LNF-GDC纳米复合阴极的电化学性能和铬中毒行为。当甘氨酸和硝酸盐的摩尔比为1:1时可得到 单相钙钛矿LNF。与LNF相比,LNF-GDC纳米复合阴极的极化阻抗显著降低,这与增强的催化活性和增大的三相边界长度有关。另外,在开路条件下,纳 米复合阴极有较好的铬容限。在中温固体氧化燃料电池中,LNF-GDC纳米复合阴极有望成为一种颇具潜力的阴极材料。

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