▎ 摘　　要

NOVELTY - Preparation of nickel-cerium oxide graphene composite nanocatalyst comprises adding 3-8 mg graphene in 5 ml water at room temperature and at atmospheric pressure, ultrasonically stirring for 30 minutes, adding nickel nitrate hexahydrate salt at molar ratio of 1:3.33-20, stirring for 30 minutes, adding reducing agent, sodium borohydride and ammonia borane, and stirring. The molar ratio of sodium borohydride and ammonia borane is 0.13-0.53:1. USE - Method for preparation of nickel-cerium oxide graphene composite nanocatalyst used for hydrolysis of ammonia borane (claimed).