The effect of film thickness and counter ions on the double layer and redox capacitance of polyaniline thin film electrode

被引：34
作者：
Lissy, SLG
Pitchumani, S [1 ]
Jayakumar, K
机构：
[1] Cent Electrochem Res Inst, EEC Div, Emerging Concepts & Adv Mat, Karaikkudi 630006, Tamil Nadu, India
[2] Gandhigram Rural Univ, Dept Phys, Gandhigram 624003, Dindigul, India
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2002年 / 76卷 / 02期
关键词：
polyaniline electrode; double layer capacitance; redox capacitance; film thickness;
D O I：
10.1016/S0254-0584(01)00512-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The high and low frequency capacitances of polyaniline electrode in different acid medium were analyzed as a function of counter ions, redox states and film thickness. The corresponding double layer and redox capacitances were discussed in terms of variables affected in the growth of polyaniline film. The redox capacitance has been found to be predominant over double layer capacitance in the overall capacitance of the polymer film in the given electrolyte composition and a comparative analysis have been made. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：143 / 150
页数：8
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