▎ 摘　　要

NOVELTY - High-performance nano-magnesium-based hydrogen storage material comprises 93-97 wt.% magnesium and 3-7 wt.% graphene contained nickel catalyst and palladium catalyst. USE - Used as high-performance nano-magnesium-based hydrogen storage material. ADVANTAGE - The material has high-capacity, high activity and hydrogen absorption and desorption property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of high-performance nano-magnesium-based hydrogen storage material comprising milling magnesium and graphene contained nickel catalyst and palladium catalyst, mixing, carrying out pretreatment to obtain magnesium/graphene contained nickel catalyst and palladium catalyst powder, carrying out hydrogenation combustion synthesis to obtain powdery magnesium-based hydrogen storage material and mechanically milling.