▎ 摘　　要

NOVELTY - Preparation of high-performance hydrogen storage material involves adding methyl methacrylate and water to a reactor, stirring under an inert gas atmosphere for 30-60 minutes to produce a mixture (C), heating to 50-70 degrees C, adding azobisisobutylamidine hydrochloride and water, polymerizing at 60-80 degrees C for 1-6 hours to produce polymethyl methyl acrylate microsphere dispersion, centrifuging, drying to obtain regularly ordered and closely packed polymethacrylate crystal template, impregnating the oxidized graphene dispersion and a nickel salt solution into the template and heating. USE - Preparation of high-performance hydrogen storage material (claimed). ADVANTAGE - The hydrogen storage material having excellent hydrogen storage properties is produced economically by simple method without affecting the environment. DETAILED DESCRIPTION - Preparation of high-performance hydrogen storage material involves adding 95-98% concentrated sulfuric acid to a mixture of sodium nitrate and graphite in weight ratio of 0.5-5.5:0.5-5.5, stirring for 10-60 minutes to produce a mixture (A) such that ratio of sulfuric acid and sodium nitrate is (90-300 ml):(0.5-5.5 g), adding potassium permanganate such that weight ratio of graphite and potassium permanganate is 0.5-5.5:5-25, stirring for 12-48 hours to produce a mixture (B), adding deionized water, stirring for 30-60 minutes, heating to 97-99 degrees C for 45-55 hours to produce crude graphene oxide, adding 35% hydrogen peroxide to the crude product, reacting for 30-60 minutes, filtering, washing, drying to obtain graphene oxide, adding graphene oxide to deionized water at room temperature, ultrasonically processing to obtain an oxidized graphene dispersion having concentration of 1-10 mg/ml, adding methyl methacrylate and water to a reactor, stirring under an inert gas atmosphere for 30-60 minutes to produce a mixture (C), heating to 50-70 degrees C, adding azobisisobutylamidine hydrochloride and water, polymerizing at 60-80 degrees C for 1-6 hours to produce polymethyl methyl acrylate microsphere dispersion, centrifuging to remove supernatant, performing vacuum drying to obtain regularly ordered and closely packed polymethacrylate crystal template, impregnating the oxidized graphene dispersion and a nickel salt solution into the template and heating under inert gas atmosphere.