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Issue 18, 2013
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Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity

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Abstract

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.

Graphical abstract: Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity

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Publication details

The article was received on 29 Jan 2013, accepted on 13 Mar 2013 and first published on 14 Mar 2013


Article type: Paper
DOI: 10.1039/C3TC30180J
Citation: J. Mater. Chem. C, 2013,1, 3084-3090
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    Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity

    M. Mathesh, J. Liu, N. D. Nam, S. K. H. Lam, R. Zheng, C. J. Barrow and W. Yang, J. Mater. Chem. C, 2013, 1, 3084
    DOI: 10.1039/C3TC30180J

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