▎ 摘　　要

NOVELTY - The preparation method of amorphous iron oxide/graphene aerogel composite material involves taking graphene oxide dispersion, ultrasonically stirring to obtain a homogeneous suspension, adding divalent iron source and sodium ascorbate to suspension, stirring to obtain mixture, leaving to stand to obtain reduced graphene hydrogel, removing the excess liquid from hydrogel, transferring to a strongly alkaline aqueous solution, completely submerging the hydrogel, leaving to stand to obtain amorphous iron oxide/graphene hydrogel composite material, washing, and freeze-drying. USE - Preparation of amorphous iron oxide/graphene aerogel composite material used as high-rate lithium-ion battery anode material (claimed). ADVANTAGE - The environmentally-friendly method enables the preparation of amorphous iron oxide/graphene aerogel composite material easily by simple process with high safety. DETAILED DESCRIPTION - The preparation method of amorphous iron oxide/graphene aerogel composite material involves taking graphene oxide dispersion, ultrasonically stirring for 20 minutes to obtain a homogeneous suspension, adding divalent iron source and sodium ascorbate to suspension, stirring for 10 minutes to obtain mixture, leaving to stand at 40-50 degrees C for more than 4 hours to obtain reduced graphene hydrogel, removing the excess liquid from hydrogel, transferring to a strongly alkaline aqueous solution with pH of greater than 11, completely submerging the hydrogel, leaving to stand for more than 0.5 hours to obtain amorphous iron oxide/graphene hydrogel composite material, washing with distilled water, and freeze-drying.