▎ 摘　　要

NOVELTY - A polystyrene ball-controlled nanostructured three-dimensional porous graphene has medium pore diameter graphene, large pore diameter graphene and small pore diameter graphene. The weight ratio of medium pore diameter graphene, large pore diameter graphene and small pore diameter graphene is 40-42:45-47:15-16. USE - Polystyrene ball-controlled nanostructured three-dimensional porous graphene is used as electrode in dye-sensitized solar cell (all claimed). ADVANTAGE - The polystyrene ball-controlled nanostructured three-dimensional porous graphene is prepared by simple and economical method. The dye-sensitized solar cell has excellent conductivity, high catalytic activity and high photoelectric conversion efficiency. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of polystyrene ball-controlled nanostructured three-dimensional porous graphene; (2) dye-sensitized solar cell electrode; and (3) preparation of dye-sensitized solar cell electrode.