▎ 摘　　要

NOVELTY - Preparing controllable graphene aerogel comprises (i) adding graphene oxide into distilled water and ultrasonically dispersing to obtain graphene oxide dispersion having concentration of 2-12 mg/cm3, where molar ratio between graphene oxide and distilled water is 10:30-200, (ii) dispersing 0.1-40 mmol intercalation modifier in solvent to prepare 5-25 wt.% solution, then adding into graphene oxide dispersion and performing ion exchange reaction at 20-60 degrees C for 2-20 hours to obtain graphene oxide modified solution, and (iii) freeze drying graphene oxide modified solution at -80 to -10 degrees C under pressure of 2-10 MPa or supercritical drying at 100-300 degrees C under pressure of 5-12 MPa to obtain graphene aerogel. USE - The method is useful for preparing controllable graphene aerogel.