阳极
杂原子
超级电容器
锌
化学工程
电化学
材料科学
活性炭
分离器(采油)
水溶液
碳纤维
电解质
硝酸锌
硫黄
沸石咪唑盐骨架
无机化学
化学
电极
金属有机骨架
吸附
冶金
有机化学
复合材料
复合数
戒指(化学)
物理
物理化学
工程类
热力学
作者
Juan Yu,Xuefeng Jia,Jiaxin Peng,Tian Wang,Hangshuo Feng,Bicheng Meng,Junkai Zhao,Naixing Yang
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2023-02-01
卷期号:170 (2): 020504-020504
被引量:2
标识
DOI:10.1149/1945-7111/acb66e
摘要
Zinc metal anodes are one of the promising aqueous anodes due to their low redox potential and high capacity. However, the growth of dendrites severely destabilizes the electrode/electrolyte interface and accelerates the generation of side reactions that ultimately degrade the electrochemical performance. Here, we used a simple and effective interface engineering strategy to construct nitrogen and sulfur double-doped orange peel-based biomass activated carbon (NS-OPC) artificial protective layer on zinc foil. Among them, nitrogen-containing functional groups and S heteroatoms can regulate the transport and deposition of Zn 2+ , and the hierarchical porous structure of activated carbon not only provides a large number of active sites for Zn 2+ , but also provides enough space for the growth of Zn 2+ dendrites. The symmetric cell with NS-OPC artificial protective layer showed excellent cycle stability (1200 h) at the current density of 1 mA cm −2 . Finally, the YP50||NS-OPC/Zn full cell was constructed to validate the performance of the NS-OPC/Zn. The capacity retention rate was 92.6% after 3000 cycles at 10 A g −1 .This work provides a feasible strategy for accelerating the industrial application of aqueous zinc-ion hybrid supercapacitors.
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