Preparation of Colloidal Dispersions of Graphene Sheets in Organic Solvents by Using Ball Milling

<table>Dispersions of graphene materials in TMU (a), NMP (b), DMF (c), THF (d) after 4000 r/min of centrifugation. All of the samples have been kept quietly for six months.</table>

Journal of Nanomaterials

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Figure 2

Figure 2: Preparation of Colloidal Dispersions of Graphene Sheets in Organic Solvents by Using Ball Milling 