▎ 摘　　要

NOVELTY - A graphene/hollow carbon sphere composite material is prepared by mixing 0.8-1.2 wt.% phenol solution with 3-5 wt.% aqueous solution of uniform polymer beads, vigorously stirring, adding hexamethylene tetramine in which mass ratio phenol:polymer beads:hexamethylene tetramine is 1:0.8-2.4:0.7, transferring reaction solution to PTFE reactor to react at 130-160 degrees C for 4-5 hours, cooling to room temperature, washing by centrifugation to obtain precursor hollow carbon spheres, and adding 3-5 wt.% aqueous solution of hollow carbon sphere precursor aqueous solution into graphite oxide. USE - Preparation of graphene/hollow carbon sphere composite material for supercapacitor, capacitive desalting, lithium ion battery, and electrochemistry field. ADVANTAGE - The composite material has unique three-dimensional porous structure and excellent conductive property. Preparation process is simple and easy to control. DETAILED DESCRIPTION - A graphene/hollow carbon sphere composite material is prepared by mixing 0.8-1.2 wt.% phenol solution with 3-5 wt.% aqueous solution of uniform polymer beads, vigorously stirring, adding hexamethylene tetramine in which mass ratio phenol:polymer beads:hexamethylene tetramine is 1:0.8-2.4:0.7, transferring reaction solution to PTFE reactor to react at 130-160 degrees C for 4-5 hours, cooling to room temperature, washing by centrifugation to obtain precursor hollow carbon spheres, adding 3-5 wt.% aqueous solution of hollow carbon sphere precursor aqueous solution into graphite oxide, ultrasonically mixing, filtering, drying, placing in tubular furnace, and performing 2-step calcination under protection of inert gas.