Abstract
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.
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