▎ 摘　　要

NOVELTY - Preparing porous zinc cobaltate-graphene composition active material/foam nickel super capacitor electrode comprises e.g. mixing graphene oxide and block polymer surfactant P123, dispersing ultrasonically in an aqueous urea solution to form a uniform dispersion, adding cobalt nitrate and zinc acetate to the dispersion to form a uniform precursor solution, transferring precursor to hydrothermal reactor, adding foam nickel into hydrothermal reactor precursor solution, carrying out hydrothermal reaction in nickel foam current collector deposited on surface of cobalt-zinc hydroxide-graphene. USE - The method is useful for preparing porous zinc cobaltate-graphene composition active material/foam nickel super capacitor electrode (claimed). ADVANTAGE - The method is simple, easy to control, economical and produces high-performance super-capacitor in a larger scale. DETAILED DESCRIPTION - Preparing porous zinc cobaltate-graphene composition active material/foam nickel super capacitor electrode comprises mixing graphene oxide and block polymer surfactant P123, dispersing ultrasonically in an aqueous urea solution to form a uniform dispersion, adding cobalt nitrate and zinc acetate to the dispersion to form a uniform precursor solution, transferring precursor solution to hydrothermal reactor, adding foam nickel into hydrothermal reactor precursor solution, carrying out hydrothermal reaction at 90-150 degrees C in nickel foam current collector deposited on surface of cobalt-zinc hydroxide-graphene composition, ultrasonically washing and drying, transferring to muffle furnace, calcining at 250 degrees C in air atmosphere.