Fabrication of polyaniline doped with Zr4+ for supercapacitors
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- 作者：Hui Xu ; Jinjuan Pu ; Chunlei Li ; Yong Chen
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：27
- 期：11
- 页码：12009-12016
- 全文大小：1,434 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Optical and Electronic Materials
Characterization and Evaluation Materials - 出版者：Springer New York
- ISSN：1573-482X
- 卷排序：27
文摘
The electrodes of conducting polymers polyaniline (PANI) and polyaniline doped with zirconium ions (PANI/Zr4+) were synthesized by interfacial polymerization strategy. The structures and morphologies of PANI and PANI/Zr4+ nanocomposites were characterized by Fourier transform infrared, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy techniques, respectively. The electrochemical properties of PANI and PANI/Zr4+ electrodes were investigated by cyclic voltammetry (CV), galvanostatic charge–discharge test, and electrochemical impedance spectroscopy in 0.5 M Na2SO4 electrolyte in three-electrode system. The effect of doping concentrations of zirconium ions (Zr4+) varied from 0.04 to 0.20 M on the specific capacitance of PANI were studied. In comparison with PANI electrode, the PANI/Zr4+ electrode indicated higher capacitance value (416 F g−1), lower resistance and better stability when the concentration of Zr4+ is 0.08 M, which demonstrated its potential superiority for supercapacitors.