Article

Synthesis of water soluble graphene

Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
Nano Letters (Impact Factor: 12.94). 07/2008; 8(6):1679-82. DOI: 10.1021/nl080604h
Source: PubMed

ABSTRACT A facile and scalable preparation of aqueous solutions of isolated, sparingly sulfonated graphene is reported. (13)C NMR and FTIR spectra indicate that the bulk of the oxygen-containing functional groups was removed from graphene oxide. The electrical conductivity of thin evaporated films of graphene (1250 S/m) relative to similarly prepared graphite (6120 S/m) implies that an extended conjugated sp (2) network is restored in the water soluble graphene.

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