• 文献标题:   In situ electrochemical polymerization of a nanorod- PANI- Graphene composite in a reverse micelle electrolyte and its application in a supercapacitor
  • 文献类型:   Article
  • 作  者:   HU LW, TU JG, JIAO SQ, HOU JG, ZHU HM, FRAY DJ
  • 作者关键词:  
  • 出版物名称:   PHYSICAL CHEMISTRY CHEMICAL PHYSICS
  • ISSN:   1463-9076
  • 通讯作者地址:   Univ Sci Technol Beijing
  • 被引频次:   55
  • DOI:   10.1039/c2cp42192e
  • 出版年:   2012

▎ 摘  要

Highly porous nanorod-PANI-Graphene composite films were prepared by in situ electrochemical polymerization onto an ITO substrate in a reverse micelle electrolyte. The morphology and microstructure of the composite films were analyzed by using a field emission scanning electron microscope. It was observed that the films were highly porous and the nanorod PANI films were inserted by graphene nanosheets. This indicated that a good conductive network between PANI nanorods and graphene sheets was formed. Further electrochemical tests involved cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) in 1 mol L-1 HClO4 solution. The results showed that the composite film had a favorable capacitance with a high electron transfer rate and low resistance. The highest specific capacitance that could be achieved was as high as 878.57 F g(-1) with the charge loading of 500 mC at a current density of 1 A g(-1). The GCD at different charge loadings showed good cycle stability with a low fading rate of specific capacitance after 1000 cycles. The results demonstrated that the nanorod-PANI-Graphene composite was proved to be of great potential as an electrode material for supercapacitors.