▎ 摘　　要

NOVELTY - alpha -Ferric oxide-graphene inverse opal structure has three-dimensional- alpha -ferric oxide-graphene inverse opal laminated on substrate. USE - alpha -Ferric oxide-graphene inverse opal structure is used for fabricating electrode for water-splitting device (claimed). ADVANTAGE - The alpha -ferric oxide-graphene inverse opal structure has high photocurrent density and low sheet resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of alpha -ferric oxide-graphene inverse opal structure, which involves electrodepositing nickel, adding polystyrene particles, polyol, solvent, etchant and aqueous ferric chloride solution.