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Paper
J. Mater. Chem., 2010, 20, 314 - 319, DOI: 10.1039/b914288f
Edge-carboxylated graphene nanoflakes from nitric acid oxidised arc-discharge material
Christoph G. Salzmann, Valeria Nicolosi and Malcolm L. H. Green
Graphene nanoflakes (GNFs) with average diameters of
30 nm have been prepared by a single-step oxidation procedure using single-wall carbon nanotube arc-discharge material and nitric acid. The GNFs are predominately single sheets containing a small number of internal defects. The edges are decorated with primarily carboxylic acid groups which allow facile chemical functionalisation and cross-linking of the fragments using multivalent cations.
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