Bifunctional electrocatalysts for rechargeable Zn-air batteries

被引:132
作者
Guo, Yibo [1 ]
Chen, Ya-Nan [1 ]
Cui, Huijuan [1 ]
Zhou, Zhen [1 ]
机构
[1] Nankai Univ, Sch Mat Sci & Engn, Inst New Energy Mat Chem,Renewable Energy Convers, Key Lab Adv Energy Mat Chem,Minist Educ, Tianjin 300350, Peoples R China
基金
中国国家自然科学基金;
关键词
Bifunctional electrocatalysts; Oxygen-reduction reaction; Oxygen-evolution reaction; Zn-air batteries; Hybrid materials; GRAPHITIC CARBON NITRIDE; OXYGEN REDUCTION; HIGHLY-EFFICIENT; DOPED CARBON; FREE CATALYSTS; IN-SITU; GRAPHENE; NANOPARTICLES; NITROGEN; OXIDE;
D O I
10.1016/S1872-2067(19)63349-8
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Zn-air batteries have attracted extensive attention for their unique features including high energy density, safety, low cost and environmental friendliness. However, due to their poor chargeability and low efficiency, the practical application remains a challenge. The main obstacles are the intrinsic slow reaction kinetics on air cathodes, including oxygen reduction reaction during the discharging process and oxygen evolution reaction during the recharging process. Searching for efficient bifunctional oxygen electrocatalysts is key to solve these problems. In this review, the configuration and fundamental oxygen electrochemical reactions on air cathodes are briefly introduced for Zn-air batteries first. Then, the latest bifunctional oxygen electrocatalysts are summarized in detail. Finally, the perspectives are provided for the future investigations on bifunctional oxygen electrocatalysts. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1298 / 1310
页数:13
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