▎ 摘　　要

NOVELTY - Preparing three-dimensional active graphene nano sheet comprises e.g. using polyols non-ionic surfactant as a carbon source, dissolving and diluting with a solvent, using alkali metal hydroxide as activator, three-dimensional structure template and catalyst precursor, mixing pre-treated non-ionic surfactant and the alkali metal hydroxide and vacuum-drying, placing the obtained mixture in a graphite crucible, adjusting the sample volume and air volume above the sample, covering the lid, burnt with charcoal powder for heat treatment, and collecting the heat treated product, removing impurity. USE - The method is useful for preparing three-dimensional active graphene nano sheet (claimed). ADVANTAGE - The method: reduces the preparation cost of the material; uses the cheap alkali metal hydroxide as activator, catalyst precursor, three-dimensional structure template; has radically simplifies the synthesis step; used heat treatment technology can be carried out in ordinary muffle furnace; is suitable for mass production; and is simple and easy for industrial production. DETAILED DESCRIPTION - Preparing three-dimensional active graphene nano sheet comprises (i) using polyols non-ionic surfactant as a carbon source, dissolving and diluting with a solvent, (ii) using alkali metal hydroxide as activator, three-dimensional structure template and catalyst precursor, (iii) mixing pre-treated non-ionic surfactant and the alkali metal hydroxide and vacuum-drying, (iv) placing the obtained mixture in a graphite crucible, adjusting the sample volume and air volume above the sample, covering the lid, burnt with charcoal powder for heat treatment, and (v) collecting the heat treated product, removing impurity, washing, filtering, drying, to obtain three-dimensional active graphene nanosheets.