超级电容器
材料科学
电极
纳米技术
碳纳米纤维
阳极
纳米纤维
阴极
电容
碳纤维
功率密度
水平扫描速率
硫化镍
碳纳米管
硫化物
化学工程
复合材料
电化学
化学
复合数
冶金
循环伏安法
工程类
物理化学
功率(物理)
物理
量子力学
作者
Liren Qiu,Wensheng Yang,Qian Zhao,Shengshang Lu,Xinhai Wang,Min Zhou,Benfu Tao,Quan Xie,Yunjun Ruan
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2022-04-15
卷期号:5 (5): 6192-6200
被引量:51
标识
DOI:10.1021/acsanm.2c00142
摘要
The high theoretical specific capacitance, quick redox rate, and superior electrical conductivity of transition metal sulfide materials have pushed their future use in supercapacitor electrodes to the forefront. With diethanolamine as a chelator and solvent, NiS nanoflakes were grown on electrospun carbon nanofibers (CNFs) in a one-step hydrothermal procedure. The optimized NiS/CNFs-2 electrode has a high specific capacity (133.3 mAh g–1 at 1 A g–1) and an outstanding rate performance (70.62% at 10 A g–1). Furthermore, a hybrid supercapacitor assembled using a NiS/CNFs-2 cathode and an activated carbon anode delivers an energy density of 22.35 W h kg–1 and a power density of 750.8 W kg–1.
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