▎ 摘　　要

NOVELTY - Pyridine is mixed with alcohol solvent at room temperature to obtain a homogeneous mixed solution. Oxidized graphite is ultrasonically dispersed in the mixed solution for 30-60 minutes, to obtain a homogeneous dispersion solution. The dispersion solution is transferred to a high-pressure reactor and reacted at high temperature, to obtain graphene. USE - Preparation of graphene for use in supercapacitors and capacitive desalination. ADVANTAGE - The method enables preparation of graphene without using a toxic deoxidizer, with high deoxidation degree and large specific surface area.