ZHANG Yongxia,WANG Mei,FANG Hua*,et al.Co3O4/Carbon Nanotube Composite Film for Supercapacitor and Its Performances[J].Plating & Finishing,2020,(2):1-4.[doi:10.3969/j.issn.1001-3849.2020.02.001]
Co3O4/碳纳米管复合膜的超级电容器性能
- Title:
- Co3O4/Carbon Nanotube Composite Film for Supercapacitor and Its Performances
- 文献标志码:
- A
- 摘要:
- 采用电泳沉积法在镍片上沉积Co3O4/碳纳米管（CNT）复合膜。利用XRD、SEM和TEM对Co3O4/CNT复合膜进行物性分析，利用循环伏安和恒流充放电测试表征电容性能。研究表明在CNT表面成功包覆了一层Co3O4壳层，形成独特的核/鞘纳米电缆结构。电化学测试表明，Co3O4/CNT复合膜电极具有较好的电容性能，在充放电电流密度为0.5 mA/cm2时，比电容高达282 F/g；增加电流密度到15 mA/cm2时，比电容为209 F/g，并具有优异的循环稳定性。
- Abstract:
- Co3O4/carbon nanotube (CNT) composite film was deposited on nickel foil by electrophoretic deposition. The physical properties of the Co3O4/CNT composite film were investigated by XRD, SEM and TEM tests. The electrochemical capacitive performances were checked by cyclic voltammetry and galvanostatic charge/discharge tests. Results showed that Co3O4 particles were successfully coated on the sidewall of CNT, resulting in unique core/sheath nanocable structure. Electrochemical tests proved that the excellent capacitive performances were achieved. A high capacity of 282 F/g was achieved at 0.5 mA/cm2, and when the current density was increased to 15 mA/cm2, the specific capacitance was 209 F/g with excellent cyclic stability.
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备注/Memo
收稿日期： 2019-06-02；修回日期： 2019-08-20
作者简介： 张永霞（1986-）， 女， 助理实验师， 研究方向为电子功能材料与微纳器件, email: 2014825@zzuli.edu.cn
通信作者： 方华， email: fh@zzuli.edu.cn
基金项目： 国家自然科学基金（U1504204，61704157）