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聚苯胺修饰活性炭电极的电化学性能
引用本文:徐磊,王玮.聚苯胺修饰活性炭电极的电化学性能[J].科技导报(北京),2011,29(6).
作者姓名:徐磊  王玮
作者单位:徐磊,XU Lei(日照港集团有限公司科研检测中心,山东日照,276800);王玮,WANG Wei(中国海洋大学材料科学与工程研究院,山东青岛,266100)
摘    要:有机体系下,采用循环伏安法(CV)在活性炭电极表面电聚合聚苯胺制备聚苯胺/活性炭复合电极,通过循环伏安、恒流充放电和电化学交流阻抗谱(EIS)测试了电极的电化学特性,结果表明,聚苯胺/活性炭复合电极具有良好的电容行为,在-1.0~1.5V参比极为Ag/AgCl,测试区间内具有较大的电化学容量,电极比电容高达276F·g-1,较活性炭电极的比电容92F·g-1有了很大提高.并且交流阻抗法测得活性炭电极的电荷转移电阻Rct为4.9Ω,而复合电极Rct仅2.4Ω.1000次充放电测试后,复合电极比电容仅衰减15.7%.由此表明,在有机体系下聚苯胺/活性炭复合电极是一种具有良好循环寿命和高比电容的复合电极材料.

关 键 词:超级电容器  聚苯胺  活性炭  比电容

Electrochemical Performance of Polyaniline-deposited Active Carbon Electrode
XU Lei,WANG Wei.Electrochemical Performance of Polyaniline-deposited Active Carbon Electrode[J].Science & Technology Review,2011,29(6).
Authors:XU Lei  WANG Wei
Institution:XU Lei1,WANG Wei2 1. Research and Testing Center,Rizhao Port Group Co. Ltd.,Rizhao 276800,Shandong Province,China 2. Institute of Material Science and Engineering,Ocean University of China,Qingdao 266100,China
Abstract:Polyaniline was fabricated by Cyclic Voltammetry (CV) on the surface of active carbon electrode in organic solvent. The electrochemical characterisation of the materials was carried out by means of cyclic voltammetry,galvanostatic charge-discharge experiments and Electrochemical Impedance Spectroscopy (EIS). The experiment results show that,the PANI/AC electrode exhibits typical capacitive behavior at the voltage window range from-1.0 to 1.5V vs Ag/AgCl. The specific capacitance of the PANI/AC electrode rea...
Keywords:supercapacitor  polyaniline  active carbon  specific capacitance  
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