Solvothermal Reduction of Chemically Exfoliated Graphene Sheets

We have developed a solvothermal reduction method that affords more effective reduction of chemically derived graphene sheets and graphite oxide than low-temperature reduction methods. Solvothermal reduction removed oxygen and defects from graphene sheets, increased the size of sp2 domains, and produced materials that were as conducting as pristine graphene and exhibited clear intrinsic Dirac behavior.