▎ 摘　　要

NOVELTY - Graphene-carbon gas gel carbon composite material comprises graphene-carbon dispersion gel, film-forming substance, wetting antifoaming agent and rheology control agent. The preparation method of the graphene-carbon gas dispersion gel comprises mixing corrosive liquid, graphene and carbon gas, and gel, adding oxidant, stirring and reacting, pouring into ice water solution, adjusting the pH value to 6-7, and obtaining mixed solution; and filtering the mixed solution, taking solid, water washing, and drying to obtain the graphene-carbon gas gel, and dispersing in the water to obtain the product. USE - Graphene-carbon gas gel carbon composite material is used for desalting water and electrode used in capacitor desalination technology. ADVANTAGE - The graphene-carbon gas gel carbon composite material has improved specific surface area and electrical conductivity, at the same time, the preparation process is simple, and it is convenient to use. The graphene average sheet number is not more than 10 layers, the sheet size is 15 m, the tap density is 0.6 g/cm3, the pore volume is not less than 0.5 ml/g, the average aperture is 1-3 nm, and the resistivity is 50-80 ohm-cm. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an electrode.