• 文献标题:   Functionalization of Graphene Oxide and its Composite with Poly(3,4-ethylenedioxythiophene) as Electrode Material for Supercapacitors
  • 文献类型:   Article
  • 作  者:   WANG MC, JAMAL R, WANG YJ, YANG L, LIU FF, ABDIRYIM T
  • 作者关键词:   pedot, thiophenegrafted graphene oxide, composite, electrochemical performance
  • 出版物名称:   NANOSCALE RESEARCH LETTERS
  • ISSN:   1556-276X
  • 通讯作者地址:   Xinjiang Univ
  • 被引频次:   27
  • DOI:   10.1186/s11671-015-1078-x
  • 出版年:   2015

▎ 摘  要

In this study, poly(3,4-ethylenedioxythiophene)/thiophene-grafted graphene oxide (PEDOT/Th-GO) composites from covalently linking of Th-GO with PEDOT chains were prepared via in situ chemical polymerization with different weight percentage of Th-GO ranging between 40 and 70 % in reaction medium. The resulting composite materials were characterized using a various analytical techniques. The structural analysis showed that the composites displayed a higher degree of conjugation and thermal stability than pure PEDOT, and the weight percentage of Th-GO could affect the doping level, amount of undesired conjugated segments, and porous structure of composites. Electrochemical analysis suggested that the highest specific capacitance of 320 F g(-1) at a current density of 1 A g(-1) with good cycling stability (capacitance retention of 80 % at 1 A g(-1) after 1000 cycles) was achieved for the composite prepared from 50 wt% Th-GO content in reaction medium.