Abstract
Nano-MnO2 was prepared by using P123 as a soft template.The MnO2 /polyaniline composite was further prepared by polymerization of aniline with the nano-MnO2 in acidic conditions and was investigated by XRD and IR.The morphology of nano-MnO2 observed by SEM was changed with the introduction of aniline.The electrochemical properties of MnO2 /PANI electrode were investigated using cyclic voltammetry,galvanostatic charge-discharge and electrochemical impedance spectroscopy.The specific capacitance of MnO2 /PANI electrode could reach as high as 190.8 F·g-1,which decayed only 4.7% over 500 cycles.And the coulombic efficiency has been maintained at above 97%.
Keywords
MnO2, polyaniline, composites, supercapacitor, electrochemical property soft-template
Publication Date
2010-02-28
Online Available Date
2010-02-28
Revised Date
2010-02-28
Received Date
2010-02-28
Recommended Citation
Xiao-cun XU, Kai-yu LIU, Zhi-gang YIN, Zhe SUN, Geng SU.
Electrochemical Capacitance of MnO_2 /PANI Composite[J]. Journal of Electrochemistry,
2010
,
16(1): 96-101.
DOI: 10.61558/2993-074X.2046
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol16/iss1/20
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