中国物理B ›› 2016, Vol. 25 ›› Issue (4): 48102-048102.doi: 10.1088/1674-1056/25/4/048102

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Graphene/polyaniline composite sponge of three-dimensional porous network structure as supercapacitor electrode

Jiu-Xing Jiang(姜久兴), Xu-Zhi Zhang(张旭志), Zhen-Hua Wang(王振华), Jian-Jun Xu(许健君)   

  1. School of Applied Science, Harbin University of Science and Technology, Harbin 150080, China
  • 收稿日期:2015-09-28 修回日期:2015-12-02 出版日期:2016-04-05 发布日期:2016-04-05
  • 通讯作者: Zhen-Hua Wang E-mail:wzhua@hrbust.edu.cn
  • 基金资助:
    Project supported by the Natural Science Foundation from Harbin University of Science and Technology and Harbin Institute of Technology.

Graphene/polyaniline composite sponge of three-dimensional porous network structure as supercapacitor electrode

Jiu-Xing Jiang(姜久兴), Xu-Zhi Zhang(张旭志), Zhen-Hua Wang(王振华), Jian-Jun Xu(许健君)   

  1. School of Applied Science, Harbin University of Science and Technology, Harbin 150080, China
  • Received:2015-09-28 Revised:2015-12-02 Online:2016-04-05 Published:2016-04-05
  • Contact: Zhen-Hua Wang E-mail:wzhua@hrbust.edu.cn
  • Supported by:
    Project supported by the Natural Science Foundation from Harbin University of Science and Technology and Harbin Institute of Technology.

摘要: As a supercapacitor electrode, the graphene/polyaniline (PANI) composite sponge with a three-dimensional (3D) porous network structure is synthesized by a simple three-step method. The three steps include an in situ polymerization, freeze-drying and reduction by hydrazine vapor. The prepared sponge has a large specific surface area and porous network structure, so it is in favor of spreading the electrolyte ion and increasing the charge transfer efficiency of the system. The process of preparation is simple, easy to operate and low cost. The composite sponge shows better electrochemical performance than the pure individual graphene sponge while PANI cannot keep the shape of a sponge. Such a composite sponge exhibits specific capacitances of 487 F·g-1 at 2 mV/s compared to pristine PANI of 397 F·g-1.

关键词: graphene, composite sponge, supercapacitor electrode

Abstract: As a supercapacitor electrode, the graphene/polyaniline (PANI) composite sponge with a three-dimensional (3D) porous network structure is synthesized by a simple three-step method. The three steps include an in situ polymerization, freeze-drying and reduction by hydrazine vapor. The prepared sponge has a large specific surface area and porous network structure, so it is in favor of spreading the electrolyte ion and increasing the charge transfer efficiency of the system. The process of preparation is simple, easy to operate and low cost. The composite sponge shows better electrochemical performance than the pure individual graphene sponge while PANI cannot keep the shape of a sponge. Such a composite sponge exhibits specific capacitances of 487 F·g-1 at 2 mV/s compared to pristine PANI of 397 F·g-1.

Key words: graphene, composite sponge, supercapacitor electrode

中图分类号:  (Graphene)

  • 81.05.ue
72.80.Tm (Composite materials) 82.45.Fk (Electrodes)