能源化学(英文) ›› 2014, Vol. 23 ›› Issue (3): 346-353.DOI: 10.1016/S2095-4956(14)60127-3

• ARTICLES • 上一篇    下一篇

Self-standing rationally functionalized graphene as high-performance electrode materials for supercapacitors

Delong Maa,b, Zhong Wub, Zhanyi Caoa   

  1. a. Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, Changchun 130022, Jilin, China;
    b. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
  • 收稿日期:2013-10-03 修回日期:2013-12-30 出版日期:2014-05-24 发布日期:2014-05-25
  • 通讯作者: Zhanyi Cao
  • 基金资助:

    This work was financially supported by 100 Talents Programme of the Chinese Academy of Sciences, National Program on Key Basic Research Project of China (973 Program, Grant No. 2012CB215500), Foundation for Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 20921002 and No. 21101147), and the Science and Technology Development Program of Jilin Province (Grant No. 20100102 and 20116008).

Self-standing rationally functionalized graphene as high-performance electrode materials for supercapacitors

Delong Maa,b, Zhong Wub, Zhanyi Caoa   

  1. a. Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, Changchun 130022, Jilin, China;
    b. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
  • Received:2013-10-03 Revised:2013-12-30 Online:2014-05-24 Published:2014-05-25
  • Supported by:

    This work was financially supported by 100 Talents Programme of the Chinese Academy of Sciences, National Program on Key Basic Research Project of China (973 Program, Grant No. 2012CB215500), Foundation for Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 20921002 and No. 21101147), and the Science and Technology Development Program of Jilin Province (Grant No. 20100102 and 20116008).

摘要: Supercapacitors (SCs) have attracted much attention as one of the alternative energy devices due to their high power performance, long cycle life, and low maintenance cost. Graphene is considered as an innovative and promising material due to its large theoretical specific surface area, high electrical conductivity, good mechanical properties and chemical stability. Herein, we report an effective strategy for elaborately constructing rationally functionalized self-standing graphene (SG) obtained from giant graphene oxide (GGO) paper followed by an ultrarapid thermal-processing. This treatment results in both the exfoliation of graphene sheets and the reduction of GGO by elimination of oxygen-containing groups. The as-prepared SG electrode materials without additive and conducting agent provide an excellent combination of the electrical double layer capacitor (EDLC) and pseudocapacitor (PC) functions and exhibit superior electrochemical performance, including high specific capacitance, good rate capability and excellent cycling stability when investigated in three-electrode electrochemical cells.

关键词: functionalized graphene, supercapacitors, self-standing

Abstract: Supercapacitors (SCs) have attracted much attention as one of the alternative energy devices due to their high power performance, long cycle life, and low maintenance cost. Graphene is considered as an innovative and promising material due to its large theoretical specific surface area, high electrical conductivity, good mechanical properties and chemical stability. Herein, we report an effective strategy for elaborately constructing rationally functionalized self-standing graphene (SG) obtained from giant graphene oxide (GGO) paper followed by an ultrarapid thermal-processing. This treatment results in both the exfoliation of graphene sheets and the reduction of GGO by elimination of oxygen-containing groups. The as-prepared SG electrode materials without additive and conducting agent provide an excellent combination of the electrical double layer capacitor (EDLC) and pseudocapacitor (PC) functions and exhibit superior electrochemical performance, including high specific capacitance, good rate capability and excellent cycling stability when investigated in three-electrode electrochemical cells.

Key words: functionalized graphene, supercapacitors, self-standing