Solubilizing graphite, to prepare reduced graphene useful e.g. to prepare capacitor, comprises reducing graphite by metal to obtain graphite intercalation compound, and exposing the compound to solvent to give reduced graphene solution

摘要

Solubilizing process of graphite, comprises: reducing graphite by an alkali metal to obtain a graphite intercalation compound; and exposing the graphite intercalation compound to an aprotic polar solvent to give a reduced graphene solution, where the process is carried out under inert atmosphere. Independent claims are included for: (1) graphene obtained, in the step of evaporation of aprotic polar solvent, by the process; (2) reduced graphene solution obtained by the process; (3) use of graphene for the preparation of composite materials; and (4) use of a reduced graphene solution for deposition of graphene on a substrate.