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羧基化石墨烯基导电聚吡咯复合材料的超电容性能

李娜,肖迎红*,鲁嘉,王延平,许崇正,杨小弟*   

  1. (江苏省新型动力电池重点实验室， 南京师范大学化学与材料科学学院 南京 210097)
  • 收稿日期:2012-05-17 修回日期:2012-07-07 出版日期:2013-03-10 发布日期:2013-03-10
  • 通讯作者: 杨小弟，教授; Tel:025-83598648; Fax:025-85891767; E-mail:yangxiaodi@njnu.edu.cn; 研究方向：环境分析化学
  • 基金资助:
    国家自然科学基金（20875047）水利部（201201018）和江苏省优势学科资助项目

Supercapacitive of Carboxyl Graphene-Based Electroconductive Polypyrrole Composite

LI Na, XIAO Yinghong*, LU Jia, WANG Yanping, XU Chongzheng, YANG Xiaodi*   

  1. (Jiangsu Key Laboratory of New Power Batteries,College of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210097,China)
  • Received:2012-05-17 Revised:2012-07-07 Published:2013-03-10 Online:2013-03-10
  • Contact: Xiaodi

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1866

被引次数

6 | 1

摘要： 制备了羧基化石墨烯基聚吡咯复合物(CG/ppy）修饰电极，用循环伏安法和交流阻抗法研究了修饰电极的电化学行为，并对修饰电极进行了恒流充放电以及循环稳定性测试。 实验结果表明，CG/ppy显著提高了玻碳电极在电解液中的电流响应，降低了玻碳电极在电解液中的电阻，修饰电极的比电容可达584 F/g，且经过1000次循环后比电容仍保持初始值的81%。 首次将羧基化石墨烯基聚吡咯应用于电化学领域，证实了CG/ppy修饰电极在该领域中有潜在的应用价值。

关键词: 羧基化石墨烯, 聚吡咯, 修饰电极, 超级电容器

Abstract: Carboxyl graphene-based polypyrrole(CG/ppy) modified electrode was prepared and its electrochemical properties were investigated via cyclic voltammetry and AC impedance. Additionally, galvanostatic charge-discharge tests and cycle stability tests were performed. Experimental results show that the CG/ppy significantly improves the current response of the bare electrode and reduces the resistance of the bare electrode in the supporting electrolyte. The specific capacitance of the CG/ppy modified electrode is up to 584 F/g and retains 81% of the initial value after 1000 cycles. Therefore CG/ppy modified electrode has potential application value in the field of electrochemical area.

Key words: Carboxyl Graphene, Polypyrrole, Modified electrode, Supercapacitor

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