• 文献标题:   Cetyltrimethylammonium bromide intercalated graphene/polypyrrole nanowire composites for high performance supercapacitor electrode
  • 文献类型:   Article
  • 作  者:   MAO L, CHAN HSO, WU JS
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Natl Univ Singapore
  • 被引频次:   27
  • DOI:   10.1039/c2ra21617e
  • 出版年:   2012

▎ 摘  要

Polypyrrole (PPy) nanowires were prepared by in situ polymerization of pyrrole in the presence of cetyltrimethylammonium bromide stabilized graphene (GCR). PPy nanowire/GCR composites with different loading ratios were tested as supercapacitor electrode materials in both 1 M H2SO4 (aq) and 1 M KCl (aq) electrolytes, and different electrochemical behaviors were observed. The incorporation of GCR nanosheets into the PPy nanowire matrix obviously improved the electrochemical performance of PPy and a high specific capacitance of 492 F g(-1) can be obtained for PPyGCR91 in 1 M H2SO4 at a current density of 0.2 A g(-1) with good cycling stability.