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化工学报  2012 

循环伏安法制备聚苯胺/活性炭超级电容器膜电极

DOI: 10.3969/j.issn.0438-1157.2012.10.046, PP. 3330-3336

Keywords: 电化学电容器,聚苯胺/活性炭,循环伏安法,柔性石墨纸,聚苯胺

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Abstract:

采用电化学循环伏安法,在柔性石墨纸基底材料上合成了聚苯胺/活性炭(PANI/AC)复合薄膜。通过SEM观察了不同扫描圈数下复合薄膜的表面形貌,通过循环伏安(CV)、交流阻抗(EIS)、恒流充放电等电化学测试方法,研究了聚苯胺/活性炭复合电极的电性能。由SEM图谱可知,不同扫描圈数下,聚苯胺/活性炭的形态也有所不同,电化学测试结果表明,以柔性石墨纸为基底材料,扫描圈数在3圈时,不仅比容量较高,达504F·g-1,而且循环稳定性较好,经2000次循环后,容量衰减仅为初始容量的14%。

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