| 电化学阴极沉积制备氧化镍/碳纳米管复合电极的准电容特性 |
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| 作者单位： | 清华大学精密仪器与机械学系,北京,100084;清华大学机械系,北京,100084 |
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| 摘 要： |
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| 关 键 词： | 氧化镍 碳纳米管 超电容器 纳米复合电极 阴极沉积 |
Pseudocapacitive Behavior of Nickel Oxide/Carbon Nanotubes Composite Prepared by Cathodic Deposition |
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| Authors: | Wang Xiaofeng Ruan Dianbo Liang Ji |
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| Abstract: | A novel type of composite electrode based on multiwalled carbon nanotubes coated with nano nickel oxide particles has been used in supercapacitors. Nickel oxide cathodically deposited from Ni(NO3)2 solution with carbon nanotubes as the matrix exhibited large pseudocapacitance of 25F/g in 6 mol/L KOH. The morphology of composites was examined by scanning electron microscope (SEM). To characterize the CNTs/nickel oxide composite electrode, a charge discharge cycling test for measuring specific capacitance, cyclic voltammetry, and ac impedance test is executed. The nickel oxide composite exhibiting excellent pseudocapacitive behavior(i.e.high reversibility, high specific capacitance, and low self discharge rate) has been demonstrated to be a potential candidate for the application of electrochemical supercapacitors. |
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| Keywords: | Nickel oxide Carbon nanotubes Supercapacitor Nanocomposite electrode， Cathodic deposition |
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