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

HU Xi1, LIU Hong-Bo1, 2, XIA Xiao-Hong1, 2, GU Zhi-Qiang1   

  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: