CHEMICAL PROCESSING METHOD FOR GRAPHENE MATERIAL HAVING HIGH SPECIFIC SURFACE AREA BY USING STRONG ALKALI

摘要

Provided is a chemical processing method for graphene material having a high specific surface area by using strong alkali, comprising the following steps: (1) a graphite oxide suspension is prepared; a strong alkali water solution having a concentration of 0.2 to 20 mol/L is prepared; (2) the strong alkali water solution in step (1) is added to the graphite oxide suspension in step (1), and then stirred till cloud-like condensation occurs; (3) solid-liquid separation is performed on the flocculated graphite oxide suspension in step (2), and the obtained solid is dried; (4) the dried solid granules or powder in step (3) is sintered at a high temperature; (5) the sintered solid in step (4) is washed, filtered, and dried. Also provided are graphene having a high specific surface area prepared using said method, and applications thereof, the graphene having a specific surface area of 1500 to 3000 m²/g.