Journal of Inorganic Materials ›› 2019, Vol. 34 ›› Issue (2): 145-151.doi: 10.15541/jim20180203

• RESEARCH PAPER • Previous Articles     Next Articles

Polyaniline-carbon Pillared Graphene Composite: Preparation and Electrochemical Performance

Xi HU1(), Hong-Bo LIU1,2(), Xiao-Hong XIA1,2, Zhi-Qiang GU1   

  1. 1. College of Material Science and Engineering, Hunan University, Changsha 410082, China
    2. Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, China
  • Received:2018-05-02 Revised:2018-05-30 Online:2019-02-20 Published:2019-01-24
  • About author:HU Xi. E-mail: xihuzwc@163.com
  • Supported by:
    National Natural Science Foundation of China (51772083, 51402101);Hunan Provincial Natural Science Foundation of China (14JJ3059, 2017JJ2008)

Abstract:

Polyaniline-carbon pillared graphene composites (PGR) were successfully prepared by vacuum extraction induced self-assembly and pyrolysis method. Effects of the mass ratio of aniline monomer (AN) and graphene oxide (GO) on structure and electrochemical properties of PGR were investigated by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and electrochemical characterization. Results showed that the polyaniline-carbon pillars uniformly distributed between the graphene (GR) layers to form a three-dimensional conductive network with expanded interlayer space and nitrogen doping, which effectively improved the structural stability and electrochemical performance of GR. The as-prepared PGR with the mass ratio of AN and GO at 1 : 1 exhibits a high reversible capacity of 653 mAh/g at a current density of 100 mA/g and an excellent rate capability of 343 mAh/g at a current density of 1 A/g, all that is much higher than that of the GR electrode (101 mAh/g).

Key words: graphene, polyaniline, pillared structure, lithium-ion batteries, anode material

CLC Number: 

  • TM911