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Citation: LI N, XIAO Yinghong, LU Ji, WANG Yanping, XU Chongzheng, YANG Xiaodi. Supercapacity of Carboxyl Graphene-Based Electroconductive Polypyrrole Composite[J]. Chinese Journal of Applied Chemistry, ;2013, 30(3): 354-359. doi: 10.3724/SP.J.1095.2013.20205 shu

Supercapacity of Carboxyl Graphene-Based Electroconductive Polypyrrole Composite

Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China

Received Date: 17 May 2012
Revised Date: 9 July 2012

Carboxyl graphene-based polypyrrole(CG/ppy) modified electrode was prepared and its electrochemical properties were investigated via cyclic voltammetry and AC impedance.Additionally,galvanostatic charge-discharge tests and cycle stability tests were performed.Experimental results show that the CG/ppy significantly improves the current response of the bare electrode and reduces the resistance of the bare electrode in the supporting electrolyte.The specific capacitance of the CG/ppy modified electrode is up to 584 F/g and retains 81% of the initial value after 1000 cycles.Therefore CG/ppy modified electrode has potential application value in the field of electrochemical area.
- carboxyl graphene,
- polypyrrole,
- modified electrode,
- supercapacitor
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