• 文献标题:   Influence of graphene microstructures on electrochemical performance for supercapacitors
  • 文献类型:   Article
  • 作  者:   GONG YN, LI DL, FU Q, PAN CX
  • 作者关键词:   graphene, nitrogen doping, microstructure, supercapacitor
  • 出版物名称:   PROGRESS IN NATURAL SCIENCEMATERIALS INTERNATIONAL
  • ISSN:   1002-0071 EI 1745-5391
  • 通讯作者地址:   Wuhan Univ
  • 被引频次:   69
  • DOI:   10.1016/j.pnsc.2015.10.004
  • 出版年:   2015

▎ 摘  要

The influence of variant graphenes on electrochemical performance for supercapacitors was studied comparatively and systematically by using SEM, FTIR and Raman spectroscopy, cyclic voltammetry (CV), galvanostatic charge/discharge and electrochemical impedance spectroscopy (EIS). The results revealed that: 1) the nitrogen-doped graphene (N-G) electrode exhibited the highest specific capacitance at the same voltage scan rate; 2) the specific capacitance of the N-G reached up to 243.5 F/g at 1 A/g, while regular graphite oxide (GO) was 43.5 F/g and reduced graphene oxide (rGO) was 67.9 F/g; 3) N-G exhibited the best supercapacitance performance and the superior electrochemical properties, which made it an ideal electrode material for supercapacitors. (C) 2015 Chinese Materials Research Society. Production and hosting by Elsevier B.V.