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

Mathesh, Motilal, Liu, Jingquan, Nam, Nguyen D., Lam, Simon K.H., Zheng, Rongkun, Barrow, Colin J. and Yang, Wenrong 2013, Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity, Journal of materials chemistry C, vol. 1, no. 18, pp. 3084-3090.

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Title Facile synthesis of graphene oxide hybrids bridged by copper ions for increased conductivity
Author(s) Mathesh, Motilal
Liu, Jingquan
Nam, Nguyen D.
Lam, Simon K.H.
Zheng, Rongkun
Barrow, Colin J.
Yang, Wenrong
Journal name Journal of materials chemistry C
Volume number 1
Issue number 18
Start page 3084
End page 3090
Total pages 7
Publisher RSC Publications
Place of publication Cambridge, England
Publication date 2013
ISSN 2050-7526
2050-7534
Summary 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.
Language eng
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30055305

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