▎ 摘　　要

NOVELTY - The preparation of ZIF-8/graphene composite aerogel, involves (S1) mixing graphite powder and sodium nitrate, dripping into acid solution, adding manganese source, stirring, washing and centrifuging to obtain graphene oxide solution, (S2) adding zinc source and dimethylimidazole aqueous solution to graphene oxide solution, ultrasonically stirring, placing in high-pressure reactor, hydrothermally reacting, and lyophilizing the product after reaction to obtain aerogel, and (S3) calcining aerogel in muffle furnace. USE - Preparation of ZIF-8/graphene composite aerogel used in electrolysis of water for hydrogen evolution (claimed). ADVANTAGE - The method enables preparation of ZIF-8/graphene composite aerogel by simple process, ensuring mild reaction conditions, and the prepared ZIF-8/graphene composite aerogel has stable structure and large number of active sites, which is beneficial to improve the efficiency of electrocatalytic hydrogen evolution.