Study of Supercapacitor Based on Carbon Nanotube-polyaniline Nanocomposite

Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (12): 1127-1130. Previous Articles Next Articles

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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

(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

(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

Abstract

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

Cite this article

DENG Mei-Gen*, YANG Bang-Chao, HU Yong-Da, WANG Bin-Hua. Study of Supercapacitor Based on Carbon Nanotube-polyaniline Nanocomposite[J]. Acta Chimica Sinica, 2005, 63(12): 1127-1130.

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基于碳纳米管－聚苯胺纳米复合物的超级电容器研究

Study of Supercapacitor Based on Carbon Nanotube-polyaniline Nanocomposite

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