沸石咪唑盐骨架
材料科学
超级电容器
热解
金属有机骨架
碳纤维
化学工程
复合数
咪唑酯
纳米孔
锌
电容器
硫化物
硫化锌
电化学
无机化学
电极
纳米技术
复合材料
化学
冶金
吸附
有机化学
物理化学
电压
工程类
物理
量子力学
作者
Vishal Shrivastav,Shashank Sundriyal,Priyanshu Goel,Avishek Saha,Umesh Tiwari,Akash Deep
出处
期刊:Nanoscale advances
[The Royal Society of Chemistry]
日期:2021-01-01
卷期号:3 (21): 6164-6175
被引量:14
摘要
The pyrolysis of metal-organic frameworks (MOFs) is an easy approach to prepare metal oxides as well as nanoporous carbon with high specific surface area. In the present work, for the first time, ZIF-8 (zeolitic imidazolate framework-8) has been pyrolyzed under different conditions to derive two products, i.e., highly porous carbon (C) and zinc sulfide (ZnS) infused carbon (ZnS@C). These two materials, i.e., nanoporous C and ZnS@C, have been investigated as a negative and a positive electrode, respectively, for potential application in a hybrid asymmetrical solid-state supercapacitor device (HASD). The controlled pyrolysis approach for the preparation of ZnS@C has yielded uniformly distributed ZnS nanoparticles inside the carbon structure. A 1.8 V HASD has been assembled, which delivered an excellent energy density of 38.3 W h kg-1 (power density of 0.92 kW kg-1) along with the greatly desirable feature of cycling stability. The proposed selection of materials as electrodes is promising to develop futuristic hybrid capacitors.
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