METHOD FOR LOW-TEMPERATURE PREPARATION OF GRAPHENE AND OF GRAPHENE-BASED COMPOSITE MATERIAL

摘要

Provided is a method for room-pressure and low-temperature preparation of graphene, comprising: heat treating a compound of graphite oxide and sulfuric acid in either room pressure or negative pressure at a temperature between 50 and 400° C., thus converting graphite oxide into graphene. Also provided is a method for low-temperature preparation of a graphene composite material. The acquired graphene and graphene composite material are applicable in optical materials, electrically-conductive materials, sensor materials, catalytic materials, battery materials, and supercapacitor materials.

主权项

1. A low-temperature preparation method of graphene, characterized in that a compound of graphite oxide and sulfuric acid is heat treated in either normal pressure or negative pressure at 50-400° C. so that the graphite oxide is converted into graphene.