▎ 摘　　要

NOVELTY - Preparing three dimensional graphene structure carbon material comprises e.g. dissolving analytically pure ethyl cellulose and sodium hydroxide in ethanol to form suspension, transferring the suspension into polytetrafluoroethylene hydrothermal kettle, reacting in homogeneous reactor, centrifuging and separating the obtained product, washing the obtained product using deionized water and absolute ethyl alcohol respectively, drying the obtained product, subjecting the obtained product to carbonization treatment under argon atmosphere at 700-1000 degrees C for 1-3 hours, washing the carbonized product with deionized water, filtering and drying to obtain carbonized product, mixing the carbonized product and potassium hydroxide for activation treatment, filtering the prepared sample, washing until the solution pH is 6.5-7.2, and drying the prepared sample at 60 degrees C to obtain three-dimensional graphene structure carbon material. USE - The method is useful for preparing three dimensional graphene structure carbon material. DETAILED DESCRIPTION - Preparing three dimensional graphene structure carbon material comprises (1) dissolving analytically pure ethyl cellulose and sodium hydroxide in ethanol according to 1:1-3 mol ratio to form suspension, transferring the suspension into polytetrafluoroethylene hydrothermal kettle, reacting in homogeneous reactor at 120-180 degrees C for 12 hours, (2) centrifuging and separating the obtained product, washing the obtained product using deionized water and absolute ethyl alcohol respectively, drying the obtained product in the oven at 70 degrees C, (3) subjecting the obtained product to carbonization treatment under argon atmosphere at 700-1000 degrees C for 1-3 hours, washing the carbonized product with deionized water, filtering and drying to obtain carbonized product, (4) mixing the carbonized product and potassium hydroxide according to 1:0.5-3 mass ratio for activation treatment at 600-900 degrees C under the protection of argon atmosphere for 0.5-2 hours, and (5) filtering the prepared sample, washing until the solution pH is 6.5-7.2, and drying the prepared sample at 60 degrees C to obtain three-dimensional graphene structure carbon material.