▎ 摘　　要

NOVELTY - Nano-magnesium-based hydrogen storage material comprises 93-97 wt.% magnesium and 3-7 wt.% graphene-supported titanium dioxide and scandium trioxide catalyst. USE - Used as nano-magnesium-based hydrogen storage material. ADVANTAGE - The nano-magnesium-based hydrogen storage material: has high activity, high capacity and excellent hydrogen absorption and desorption performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing nano-magnesium-based hydrogen storage material. The method comprises carrying out ball milling and mixing under inert atmosphere.