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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (12): 1127-1130. 上一篇    下一篇

研究简报

基于碳纳米管－聚苯胺纳米复合物的超级电容器研究

邓梅根*，杨邦朝，胡永达，汪斌华   

  1. (电子科技大学微电子与固体电子学院 成都 610054)
  • 投稿日期:2004-11-11 修回日期:2005-03-04 发布日期:2010-12-10
  • 通讯作者: 邓梅根

Study of Supercapacitor Based on Carbon Nanotube-polyaniline Nanocomposite

DENG Mei-Gen*, YANG Bang-Chao, HU Yong-Da, WANG Bin-Hua   

  1. (Institute of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054)
  • Received:2004-11-11 Revised:2005-03-04 Published:2010-12-10
  • Contact: DENG Mei-Gen

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2874

被引次数

19

为了提高碳纳米管的比容, 采用化学原位聚合的方法在碳纳米管的表面包覆聚苯胺, 制备碳纳米管-聚苯胺纳米复合物. 运用TEM和IR对样品进行了表征. 通过循环伏安研究样品的电化学特性. 利用恒流充放电考察基于碳纳米管-聚苯胺复合物超级电容器的性能. 在相同实验条件下, 对碳纳米管进行了比较分析. 实验结果表明, 在电流密度为10 mA/cm2时, 碳纳米管和碳纳米管-聚苯胺复合物的比容分别为52和201 F/g. 基于碳纳米管-聚苯胺纳米复合物的超级电容器的能量密度达到6.97 Wh/kg, 并且具有良好的功率特性.

关键词: 超级电容器, 碳纳米管, 聚苯胺, 纳米复合物

In order to increase the specific capacitance of carbon nanotubes (CNT), chemical polymerization method was used to prepare carbon nanotube-polyaniline (CNT-PANI) nanocomposite by coating polyaniline on the surface of the CNT. The product was characterized by transmission electron microscopy and infrared spectra. Cyclic voltammetry was also used to investigate its electrochemical properties. The performance of supercapacitors equipped with the CNT-PANI nanocomposite electrodes in 1 mol/L H2SO4 was evaluated by galvanostatic charge/discharge. A comparative analysis of the CNT was also conducted under similar conditions. At a current density of 10 mA/cm2, the CNT-PANI nanocomposite exhibits high specific capacitance of 201 F/g, in comparison with a value of 52 F/g for the CNT. And supercapacitors based on the CNT-PANI nanocomposite have an energy density of 6.97 Wh/kg and an outstanding power performance.

Key words: supercapacitor, carbon nanotube, polyaniline, nanocomposite