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Citation: ZHANG Shuying, WEN Liuqing, WU Kezhong. Capacitive Properties of Polyaniline Electrodes Doped with Quaternary Ammonium Salts[J]. Chinese Journal of Applied Chemistry, ;2013, 30(8): 951-956. doi: 10.3724/SP.J.1095.2013.20447 shu

Capacitive Properties of Polyaniline Electrodes Doped with Quaternary Ammonium Salts

a. Department of Basic Course, the Chinese People'Armed Police Force Academy, Langfang 065000, China;
b. College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China

Received Date: 4 October 2012
Revised Date: 19 November 2012

Polyaniline electrodes doped with quaternary ammonium salts[C_nH_2n+1N(CH₃)₃]Cl(n=12,14,16,18) were prepared by cyclic voltammetry. The surface morphology and the structures of composite electrodes were characterized by scanning electron microscope(SEM) and Fourier transform infrared spectroscopy(FTIR). The electrochemical properties of electrodes and the capacitive behavior of the resulting capacitors were systematically studied using cyclic voltammetry(CV),electrochemical impedance spectroscopy(EIS) and constant current charge discharge tests. The specific capacitance of polyaniline electrode doped with[C₁₈H₃₇N(CH₃)₃]Cl exhibits a value as high as 329.6 F/g,higher than the value of 199.0 F/g for the PANI electrode at a constant current of 2 × 10^-3 A. Moreover,the PANI/C₁₈C₃ electrodes retain good stability over 30 charge-discharge tests with a specific capacitance of 252.4 F/g.
- polyaniline,
- quaternary ammonium,
- surfactants,
- supercapacitors
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