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Electrochemical Preparation of Polypyrrole/Graphene Films on Titanium Mesh as Active Materials for Supercapacitors
Jun-hao Chen,Xia-yu Feng,Wu-feng Chen,Yu-qing Song,Li-feng Yan
Author NameAffiliationE-mail
Jun-hao Chen Department of Chemical Physics, iCHEM, University of Science and Technology of China, Hefei 230026, China  
Xia-yu Feng Department of Chemical Physics, iCHEM, University of Science and Technology of China, Hefei 230026, China  
Wu-feng Chen Department of Chemical Physics, iCHEM, University of Science and Technology of China, Hefei 230026, China  
Yu-qing Song Department of Chemical Physics, iCHEM, University of Science and Technology of China, Hefei 230026, China  
Li-feng Yan Department of Chemical Physics, iCHEM, University of Science and Technology of China, Hefei 230026, China lfyan@ustc.edu.cn 
Abstract:
Films of polypyrrole/graphene on titanium mesh were prepared by electrochemical reduction of the fresh dried foam films of graphene oxide followed by an electrochemical polymerization of pyrrole. The as-obtained composite had highly surface area, conductivity, and could be used as the electrode for supercapacitors, especially directly used as the active materials in free of binders while the Ti mesh worked as the collector. Plenty of polypyrrole nanoparticles formed on the surface of reduced graphene film, and some fiber-like aggregates could be formed during the polymerization, which worked as the material for pseudo-capacitance. The specific capacitance of the supercapacitor reached 400 F/g and showed high stability with retaining capacitance of 82% after 5000 cycles, indicating that the nanocomposite is a suitable active material for supercapacitors.
Key words:  Graphene  Polypyrrol  Thin film  Supercapacitors  Electrochemical
FundProject:This work is supported by the National Natural Science Foundation of China (No.51373162),and the Natural Science Foundation of Anhui Province (No.1408085MKL03).
电化学制备钛网负载聚吡咯/石墨烯复合膜及其在超级电容器中的应用
陈俊豪,冯夏宇,陈武峰,宋雨晴,闫立峰
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DOI:10.1063/1674-0068/30/cjcp1604092
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