▎ 摘　　要

NOVELTY - Preparing fluorinated graphene-coated magnesium borohydride composite hydrogen storage material comprises (i) placing magnesium borohydride powder in the container, adding organic solvent I, ultrasonically dispersing, and stirring to keep the suspension state to obtain a suspension A, (ii) weighing the fluorinated graphene powder, ultrasonic dispersing in the organic solvent II to obtain the dispersion liquid B, (iii) weighing polymethyl methacrylate, adding an organic solvent III, dissolving to obtain solution C, (iv) under the stirring condition, dropping dispersion solution B and solution C into the suspension A and dripping the interface bonding agent, (v) separating out the polymethyl methacrylate from the mixed solution, continuously stirring after finishing dripping, filtering and cleaning, and (vii) drying. USE - The fluorinated graphene-coated magnesium borohydride composite hydrogen storage material is used as the raw material of energy-containing material (claimed), such as solid propellant and safety explosive. ADVANTAGE - The method enables to prepare fluorinated graphene-coated magnesium borohydride composite hydrogen storage material that has excellent performance such as high heat value, without reducing the mass standard of propellant. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for fluorinated graphene-coated magnesium borohydride composite hydrogen storage material prepared by the method.