催化作用
电池(电)
电解质
材料科学
钴
化学工程
电化学
阴极
双金属片
氧气储存
解吸
无机化学
吸附
电极
化学
物理化学
工程类
功率(物理)
物理
量子力学
生物化学
作者
Qi Sun,Guohua Zhu,Lei Dai,Wei Meng,Ling Wang,Shan Liu
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2023-07-21
卷期号:11 (31): 11625-11634
被引量:1
标识
DOI:10.1021/acssuschemeng.3c02484
摘要
Rechargeable solid-state sodium–air batteries have been considered as next-generation high-energy-density electrochemical storage devices. However, the limited triple-phase boundaries and slow kinetics between the cathode and electrolyte seriously affect the rate performance and the cycle life of the battery. The cathode/catalyst material of the battery is the facility for oxygen reduction and evolution reactions, which determine the capacity and rechargeability of these metal–air batteries. Herein, we designed a novel two-dimensional porous high-efficiency catalyst (Co0.6@N–C) with high catalytic activity obtained from a cobalt/zinc bimetallic zeolite-like imidazole skeleton structure (Co0.6Zn0.4-ZIF-L) material. The two-dimensional Co0.6@N–C catalyst not only provides more active sites/channels for oxygen adsorption and desorption but also exhibits continuous faster electron transfer at the interface of electrolyte and catalyst; this ingenious arrangement endows the solid-state Na–air battery with a superior capability of 11 150 mAh g–1 and cycling stability in air.
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