▎ 摘　　要

NOVELTY - Oxidation exfoliation of graphite to produce one or several layers of carbon sheet (graphene) by peeling from the graphite involves irradiating graphite with microwaves, and oxidizing graphite by adding sulfuric acid, sodium nitrate, and potassium permanganate. Graphite is a laminate of carbon sheets comprising carbon atom located in a line with the lattice form of a hexagon. USE - Production of carbon sheet (graphene). ADVANTAGE - The peeling of carbon sheet from graphite is carried out efficiently and economically by oxidation process using sulfuric acid, sodium nitrate, and potassium permanganate, without providing primary oxidation treatment to graphite in short period of time.