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电化学(中英文) ›› 2008, Vol. 14 ›› Issue (1): 24-29.  doi: 10.61558/2993-074X.1857

• 研究论文 • 上一篇    下一篇

直立碳纳米管超级电容器的研究

叶晓燕;王艳芝;宋海燕;孙卓;何品刚;方禹之;   

  1. 华东师范大学化学系,华东师范大学化学系,华东师范大学化学系,华东师范大学纳光电集成与先进装备教育部工程研究中心,华东师范大学化学系,华东师范大学化学系 华东师范大学纳光电集成与先进装备教育部工程研究中心,上海200062,上海200062,华东师范大学纳光电集成与先进装备教育部工程研究中心,上海200062
  • 收稿日期:2008-02-28 修回日期:2008-02-28 出版日期:2008-02-28 发布日期:2008-02-28

A Study on Supercapacitor Based on Aligned Carbon Nanotubes

YE Xiao-yan1,WANG Yan-zhi1,SONG Hai-yan1,2,SUN Zhuo2,HE Pin-gang1,2,FANG Yu-zhi1   

  1. (1.Department of Chemistry,East China Normal University,Shanghai 200062,China,2.Engineering Research Center for Nanophonics & Advanced Instrument,Ministry of Education,Shanghai 200062,China
  • Received:2008-02-28 Revised:2008-02-28 Published:2008-02-28 Online:2008-02-28

摘要: 在石英玻璃基底上,以酞菁裂解法低压气相沉积制备大面积管径均匀、长度一致的直立碳纳米管.分别应用电解质溶液浸润、酸处理和循环伏安扫描等3种不同方法纯化活化该直立碳纳米管,并以活化后的碳纳米管作为原型超级电容器的电极.循环伏安扫描和交流阻抗测试表明,CV曲线呈近似矩形,交流阻抗最大相位角超过80°,该直立碳纳米管的比电容为16~32F/g,乃超级电容器理想的电极材料.

关键词: 直立碳纳米管, 超级电容器, 循环伏安, 交流阻抗

Abstract: Large scale vertically aligned carbon nanotubes(ACNTs) with uniform length and diameter were prepared by the pyrolysis of iron(Ⅱ) phthalocyanine at low pressure.The ACNTs were activated by electrolyte-activation,acid-activation or electrochemical activation.The performance of the capacitor based on activated ACNTs was characterized by cyclic voltammograms which was of rectangular shape,impedence spectroscopy in which the phase is above 80° and the result specific capacitance was 16~32 F/g,which suggest that the ACNTs are the promising material for the supercapacitor.

Key words: aligned carbon nanotubes, supercapacitor, cyclic voltammetry, impedence spectroscopy

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