▎ 摘　　要

NOVELTY - A porous graphene nanomaterial has pore aperture of 10-160 nm, specific surface area of 300-1200 m2/g, and tapped density of 0.05-0.9 g/ml. USE - Porous graphene nanomaterial. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the porous graphene nanomaterial, comprising: (A) adding 5-15 pts. wt. graphite, 1-100 pts. wt. carbonizing agent and 1-5 pts. wt. pore-forming agent to solvent and dispersing; (B) contacting resulting dispersion with gas atmosphere and heating to 500-1500 degrees C at rate of 1-20 degrees C/minute for 1-48 hours; (C) heating to 2000-3500 degrees C at rate of 1-20 degrees C/minute and carbonizing processing for 1-120 hours, and then cooling to obtain carbon-coated graphene material; and (D) carrying out post-treatment of carbon-coated graphene material.