Preparation and Electrochemistry of SWNT/PANI Composite Films for Electrochemical Capacitors
Preparation and Electrochemistry of SWNT/PANI Composite Films for Electrochemical Capacitors
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DOI：
10.1149/1.1758812
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发表时间：
2004-07
影响因子：
3.9
通讯作者：
Yingke Zhou;Benlin He;Wenfang Zhou;Hu-lin Li
中科院分区：
文献类型：
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作者：
Yingke Zhou;Benlin He;Wenfang Zhou;Hu-lin Li
采用原位电化学聚合法制备了单壁碳纳米管/聚苯胺（SWNT/PANI）复合膜。通过扫描电子显微镜和X射线光电子能谱仪对这些聚苯胺基薄膜的表面形貌和结构特性进行了研究。利用循环伏安法、充放电测试和交流阻抗谱研究了薄膜的电化学电容性能。复合膜，基于良好分散的单壁碳纳米管和聚苯胺基体之间的电荷转移复合物，显示出更高的比电容，更好的功率特性，并且在电容器中的应用比纯聚苯胺膜电极更有前途。
Single-walled carbon nanotube/polyaniline (SWNT/PANI) composite films were prepared by in situ electrochemical polymerization of an aniline solution containing different SWNT contents. Surface morphology and structural properties of these PANI-based films were examined by a scanning electron microscope and X-ray photoelectron spectroscopy. The electrochemical capacitance properties of these films were investigated with cyclic voltammetry, charge-discharge tests, and ac impedance spectroscopy. The composite film, based on the charge-transfer complex between well-dispersed SWNT and PANI matrixes, shows much higher specific capacitance, better power characteristics, and is more promising for applications in capacitors than a pure PANI film electrode.