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

Figure 1

Schematic illustration for the creation of graphene from multilayered graphite by using wet ball-milling: (a) GNs dispersed in solvent are delaminated by mill balls in grinding process; (b) graphene sheets are formed in situ in solvent. The arrows indicate the shear forces applied to graphite platelets.