HIGH-DENSITY HIGH-RIGIDITY GRAPHENE POROUS CARBON MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

摘要

The present disclosure provides a graphene-based porous carbon material with high-density and high-hardness, a method for making the same, and applications thereof. The method includes following steps: step 1, forming an original sol by adding a graphene-based component or a mixture of a graphene-based component and an auxiliary component in a solvent and dispersing the graphene-based component to obtain the original sol for preparing the graphene-based porous carbon material; step 2, preparing a graphene-based gel by placing the original sol prepared in step 1 in a reacting container and heating the original sol to a temperature of about 20°C to about 500°C for about 0.1 hours to about 100 hours; step 3, preparation of the graphene-based porous carbon material with high-density and high-hardness: after drying the gel at a temperature of about 0°C to about 200°C, heating the gel in an oxygen-deficient atmosphere and a temperature of about 100°C to about 3600°C for about 0.1 hours to about 100 hours, or/and activating the gel at a temperature of about 200°C to about 2000°C for about 0.1 hours to about 50 hours. Compared with the prior art, the prepared graphene-based material has the advantage of high density, high hardness, abundant pores, large specific surface area and stable pore structure.