新型纳米晶双功能氧电极的研究  

Research on novel nano-level bifunctional oxygen electrode

作　　者：唐致远[1] 宋世栋[1] 潘丽珠[1] 刘建华[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《电池》2002年第z1期67-68,共2页Battery Bimonthly

摘　　要：　合成了系列新型纳米晶钙钛矿型双功能氧电极催化剂La0.6Ca0.4CoO3,La1-xSrxNi1-xCoxO3（x=0,0.05;y=0,0.1）,经XRD表征催化剂均为钙钛矿单相。考察了不同催化剂对氧还原和氧析出反应的电催化活性。结果表明,纳米级钙钛矿型催化剂LaNi0.9Co0.1O3和La0.95Sr0.05Ni0.9Co0.1O3具有良好的氧过原催化活性,而La0.95Sr0.05Ni0.9Co0.1O3和La0.6Ca0.4CoO3的氧析出催化活性较高。A series of novel nano-level perovskite complex oxides La0.6Ca0.4CoO3, La1-x iSrx Ni1-x CoxO3 (x = 0, 0. 05; y = 0, 0.1)used for bifunctional oxygen electrode catalysts were prepared. All nano crystal catalysts were identified as single phase by XRD. Their electrocatalytic activity on oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) were also investi-gated. The results showed that LaNi0.9Co0.1O3 and La0.95Sr0.05Ni0.9Co0.1iO3 showed good catalytic activities for ORR and La0.95 Sr0.05Ni0.9Co0.1O3 and La0.6Ca0.4CoO3 showed good activities for OER.

关 键 词：双功能氧电极 钙钛矿型复合氧化物 金属-空气电池 燃料电池 溶胶-凝胶法 

分 类 号：TM910[电气工程—电力电子与电力传动]