• 文献标题:   Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity
  • 文献类型:   Article
  • 作  者:   MATHESH M, LIU JQ, NAM ND, LAM SKH, ZHENG RK, BARROW CJ, YANG WR
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF MATERIALS CHEMISTRY C
  • ISSN:   2050-7526 EI 2050-7534
  • 通讯作者地址:   Deakin Univ
  • 被引频次:   29
  • DOI:   10.1039/c3tc30180j
  • 出版年:   2013

▎ 摘  要

In this article, we report a facile method for preparing graphene oxide (GO) hybrid materials consisting of copper ions (Cu2+) complexed with GO, where Cu2+ acted as bridges connecting GO sheets. The method of film formation is based on cross-linking GO using Cu2+ followed by filtration onto nanoporous supports. This binding can be rationalized due to the chemical interaction between the functional groups on GO and the metal ion. We observed that there was a decrease in charge transfer resistance through electrochemical study. It suggests that the presence of metal ions in GO films could introduce new energy levels along the electron transport pathway and open up possible conduction channels. We also found that the hybrid graphene film assembled with Cu2+ dramatically decreases resistance through flash light reduction.