Production of Graphene Sheets by Direct Dispersion with Aromatic Healing Agents

Authors


  • M.Z. and R.R.P. contributed equally to this work. This material is based upon work supported by the National Science Foundation under grant CHE-0750201 and the Rutgers Research Council. H.H. also acknowledges the Trustees Research Fellowship Program at Rutgers, The State University of New Jersey.

Abstract

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A simple and scalable exfoliation approach is developed to produce high-quality single-layer graphene sheets without the use of toxic reduction agents of expensive solvents. Graphite powders are exfoliated in a water solution of pyrene derivatives, which act as dispersion agents, healing agents, and electric “glue” during the thermal annealing process.

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