Synthesis of soluble graphene nanosheets from graphite fluoride in low-temperature molten hydroxides

A facile but efficient method has been developed to prepare graphene nanosheets (GNS) by reacting graphite fluoride with molten hydroxides at low temperature. Through the reaction, the resultant product shows a good dispersion in ethanol solution to self-exfoliate into GNS. The morphology and struct...

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Bibliographic Details
Published in:Materials letters 2014-11, Vol.135, p.92-95
Main Authors: Liang, Xianqing, Guo, Jin, Liang, Shuiying, Hong, Caihao, Zhao, Yidong
Format: Article
Language:English
Subjects:
Carbon materials
Dispersions
Ethyl alcohol
Fluorides
Graphene
Graphene nanosheets
Graphite
Graphite fluoride
Hydroxides
Hydroxyl radicals
Microstructure
Nanostructure
Spectroscopy
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Summary:A facile but efficient method has been developed to prepare graphene nanosheets (GNS) by reacting graphite fluoride with molten hydroxides at low temperature. Through the reaction, the resultant product shows a good dispersion in ethanol solution to self-exfoliate into GNS. The morphology and structure of GNS were characterized by microscopic and spectroscopic techniques, respectively. The results indicate that the GNS exhibit wrinkled structure with small sheet thickness and contain low quantities of oxygen functional groups arising from the displacement of fluorine atoms by hydroxyl radicals. This study provides a cost-effective route to large-scale production of soluble GNS for many potential applications. •A novel synthesis of graphene nanosheets from graphite fluoride is presented.•The molten hydroxides play a key role in preparation of graphene nanosheets.•A well-dispersed graphene nanosheets solution is achieved.•This method is facile, cost-effective and easy to scale up.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2014.07.119