Electrochemical properties of polyaniline in p-toluene sulfonic acid solution
Electrochemical properties of polyaniline in p-toluene sulfonic acid solution
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DOI：
10.1016/j.eurpolymj.2009.05.016
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发表时间：
2009-09
影响因子：
6
通讯作者：
Guocheng Xu;Wen Wang;Xiaofei Qu;Yan-sheng Yin;L. Chu;B. He;Huikang Wu;Jing-Rui Fang;Y. Bao;Liang Liang-Liang
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文献类型：
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作者：
Guocheng Xu;Wen Wang;Xiaofei Qu;Yan-sheng Yin;L. Chu;B. He;Huikang Wu;Jing-Rui Fang;Y. Bao;Liang Liang-Liang
在无机酸（硫酸）存在下，聚苯胺以动电位沉积在不锈钢基材上。在有机酸（对甲苯磺酸）溶液中通过循环伏安法和电化学阻抗谱对电极进行电化学表征。结果表明，聚苯胺在1mVs−1时具有～431.8Fg−1的高比电容，在20mVs−1时具有～95.6%的高库伦效率，并表现出高可逆性。这表明聚苯胺作为电化学电容器材料在对甲苯磺酸溶液电解质中特别是在高充放电过程中具有良好的可行性。
Polyaniline was deposited potentiodynamically on a stainless steel substrate in the presence of an inorganic acids (sulfuric acid). The electrochemical characterization of the electrode was carried out by means of cyclic voltammetry and electrochemical impedance spectroscopy in the organic acids (p-toluene sulfonic acid) solution. The results show that polyaniline has a high specific capacitance of ∼431.8Fg−1at 1mVs−1, high coulombic efficiency of ∼95.6% at 20mVs−1, and exhibits a high reversibility. This indicates the promising feasibility of the polyaniline used as an electrochemical capacitor material in the electrolyte of p-toluene sulfonic acid solution especially at high charge–discharge process.