▎ 摘　　要

NOVELTY - Producing three-dimensional graphene comprises e.g. using graphite oxide as raw material, dispersing in chloride salt solution, ultrasonically dispersing to form chlorine-graphene oxide mixed liquid, adding mixed liquid in an alkaline solution, adding carbon dioxide gas or directly adding carbonate solution, obtaining graphene oxide-carbonate compound, placing graphene oxide-carbonate compound in a graphitizing furnace, reacting to obtain graphene-carbonate compound, removing carbonate template using acid solution, washing and drying to obtain porous graphene. USE - The method is useful for producing three-dimensional graphene (claimed), which is used in thermal conductivity composite material, energy storage materials, and adsorption materials. ADVANTAGE - The method has simple operation process, and is economical. The porous graphene has high conductivity, large specific surface area, hydrophilic and hydrophobic properties. DETAILED DESCRIPTION - Producing three-dimensional graphene, comprises (i) using graphite oxide as raw material, dispersing in chloride salt solution, ultrasonically dispersing to form chlorine-graphene oxide mixed liquid, (ii) adding mixed liquid in an alkaline solution, adding carbon dioxide gas or directly adding carbonate solution, obtaining graphene oxide-carbonate compound, (iii) placing graphene oxide-carbonate compound in a graphitizing furnace, under inert gas atmosphere, reacting at 400-1000 degrees C for 0.5-8 hours, carrying out reduction reaction to obtain graphene-carbonate compound, and (iv) removing carbonate template using acid solution, washing and drying to obtain porous graphene.