›› 2015, Vol. 24 ›› Issue (4): 47204-047204.doi: 10.1088/1674-1056/24/4/047204

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Synthesis and electrochemical properties of three-dimensional graphene/polyaniline composites for supercapacitor electrode materials

赵文, 何大伟, 王永生, 杜翔, 忻昊   

  1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2014-10-06 修回日期:2014-11-22 出版日期:2015-04-05 发布日期:2015-04-05
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2011CB932700 and 2011CB932703), the National Natural Science Foundation of China (Grant Nos. 61335006, No 61378073, and 61077044), the Beijing Natural Science Foundation, China (Grant No. 4132031), and the Fundamental Research Funds for the Central Universities of Beijing Jiao tong University, China (Grant No. 2014YJS136).

Synthesis and electrochemical properties of three-dimensional graphene/polyaniline composites for supercapacitor electrode materials

Zhao Wen (赵文), He Da-Wei (何大伟), Wang Yong-Sheng (王永生), Du Xiang (杜翔), Xin Hao (忻昊)   

  1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
  • Received:2014-10-06 Revised:2014-11-22 Online:2015-04-05 Published:2015-04-05
  • Contact: He Da-Wei E-mail:dwhe@bjtu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2011CB932700 and 2011CB932703), the National Natural Science Foundation of China (Grant Nos. 61335006, No 61378073, and 61077044), the Beijing Natural Science Foundation, China (Grant No. 4132031), and the Fundamental Research Funds for the Central Universities of Beijing Jiao tong University, China (Grant No. 2014YJS136).

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摘要： To improve the specific capacitance and rate capability of electrode material for supercapacitors, three-dimensional graphene/polyaniline (3DGN/PANI) composite is prepared via in situ polymerization on GN hydrogel. PANI grows on the GN surface as a thin film, and its content in the composite is controlled by the concentration of reaction monomer. The specific capacitance of 3DGN/PANI composite containing 10 wt% PANI reaches 322.8 F·g-1 at a current density of 1 A·g-1, nearly twice as large as that of the pure 3DGN (162.8 F·g-1). The capacitance of the composite is 307.9 F·g-1 at 30 A·g-1 (maintaining 95.4%), and 89% retention after 500 cycles. This study demonstrates the exciting potential of 3DGN/PANI with high capacitance, excellent rate capability and long cycling life for supercapacitors.

关键词: graphene/polyaniline composites, electrochemical property, three-dimensional graphene

Abstract: To improve the specific capacitance and rate capability of electrode material for supercapacitors, three-dimensional graphene/polyaniline (3DGN/PANI) composite is prepared via in situ polymerization on GN hydrogel. PANI grows on the GN surface as a thin film, and its content in the composite is controlled by the concentration of reaction monomer. The specific capacitance of 3DGN/PANI composite containing 10 wt% PANI reaches 322.8 F·g-1 at a current density of 1 A·g-1, nearly twice as large as that of the pure 3DGN (162.8 F·g-1). The capacitance of the composite is 307.9 F·g-1 at 30 A·g-1 (maintaining 95.4%), and 89% retention after 500 cycles. This study demonstrates the exciting potential of 3DGN/PANI with high capacitance, excellent rate capability and long cycling life for supercapacitors.

Key words: graphene/polyaniline composites, electrochemical property, three-dimensional graphene

中图分类号:  (Composite materials)

  • 72.80.Tm
82.45.Rr (Electroanalytical chemistry) 61.48.Gh (Structure of graphene)