High-quality few layer graphene produced by electrochemical intercalation and microwave-assisted expansion of graphite

Erratum a este artículo publicado en: Carbon, Volume 49, Issue 13, November 2011, Page 4612 (DOI: http://dx.doi.org/10.1016/j.carbon.2011.06.037) -------------------------------------------------------------------------------- Resumen: Few-layer graphene is synthesized from electrochemically-produced graphite intercalation compounds in aqueous perchloric acid. Although anodic intercalation is more efficient in terms of time, cathodic pre-treatment is preferred to avoid the formation of graphite oxide. The materials are characterized by high resolution transmission electron microscopy and scanning electron microscopy, UV-visible, infrared and Raman spectroscopy. We demonstrate that the method, under the experimental conditions used in this work, does not produce damage to the sp(2) carbon lattice. The synthetic approach using electrochemical-potential control is very promising to obtain, in a controllable manner, graphene with different degrees of oxidation.

oriented pyrolytic-graphite; atomic-force microscopy; raman-spectroscopy; suspended graphene; berrys phase; carbon; exfoliation; electrodes; nanosheets; oxidation

High-quality few layer graphene produced by electrochemical intercalation and microwave-assisted expansion of graphite Articles