Patent ID: 9017638
Filing Date: 2015-04-28
Classification: B82Y,C01B,C07C,Y02E,Y10S

Abstract:
1. A method for production of an edge-functionalized graphene comprising: providing graphite; reacting organic material having one or more functional groups with the graphite in a reaction medium comprising methanesulfonic acid and phosphorus pentoxide, or in a reaction medium comprising trifluoromethanesulfonic acid, thus to substitute force of edge positions between graphene sheets with covalent bonds between graphene and organic material, wherein the one or more functional groups include one or more selected from a group consisting of carboxylic acid group, amide group, sulfonic acid group, carbonyl chloride group and carbonyl bromide group, and wherein the organic material covalently attached to graphene acts as a wedge, and thereby exfoliating graphene functionalized at its edge positions.