Preparation of perovskite-type La0.8Sr0.2Mn1-xCoxO3 by template method and catalytic performance in aluminum-air battery

被引：6
作者：
Hou, Yuwei [1 ]
Chen, Lu [1 ]
Yu, Xiaohua [1 ]
Zhang, Wenzhi [1 ]
Shen, Qingfeng [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2023年 / 177卷
关键词：
Electrochemical performance; Template method; Aluminum-air battery; Catalyst; OXYGEN-REDUCTION; ENERGY-STORAGE; FUEL-CELLS; OXIDATION; OXIDE; DESTRUCTION; EFFICIENT; ELECTROCATALYSTS; EVOLUTION; SURFACE;
D O I：
10.1016/j.jpcs.2022.111200
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of La0.8Sr0.2Mn1-xCoxO3 (x = 0.1, 0.2, 0.4, 0.6) perovskite-type composite oxides were prepared by the template method using carbon microspheres as template. Among them, La0.8Sr0.2Mn0.8Co0.2O3 has excellent bifunctional electrocatalytic activity, and its oxygen reduction process is a four-electron reaction pathway. Its initial potential is closest to that of commercial Pt/C, with a difference of only 60 mV. The limit current density is basically consistent with that of commercial Pt/C. When it is used as cathode catalyst of aluminum-air battery, the discharge voltage of aluminum-air battery can remain stable under different current density, which is higher than that of undoped LaMnO3.
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页数：9
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