▎ 摘　　要

NOVELTY - Preparing supercapacitor electrode material by combining Fe-Anderson type heteropoly acid with graphene involves preparing graphene oxide by improved Hummers method, synthesizing, pre-oxidizing, carrying out secondary oxidation, and obtaining oxidized graphene; adding Fe-Anderson heteropoly acid for preparing ammonium molybdate tetrahydrate aqueous solution, heating to boil, adding aqueous solution of soluble iron salt, steam evaporating mixed liquid, filtering, cooling to room temperature, separating crystal, and obtaining Fe- Anderson heteropoly acid; and carrying out hydrothermal reaction. USE - Method for preparing supercapacitor electrode material by combining Fe-Anderson type heteropoly acid with graphene (claimed). ADVANTAGE - The method has large specific surface area, good thermal stability and electrochemical performance, simple equipment, low cost, and high specific capacitance capability. DETAILED DESCRIPTION - Preparing supercapacitor electrode material by combining Fe-Anderson type heteropoly acid with graphene comprises preparing graphene oxide by improved Hummers method, synthesizing, pre-oxidizing, carrying out secondary oxidation, and obtaining oxidized graphene; adding Fe-Anderson heteropoly acid for preparing ammonium molybdate tetrahydrate aqueous solution, heating to boil, adding aqueous solution of soluble iron salt, steam evaporating mixed liquid, filtering, cooling to room temperature, separating crystal, and obtaining Fe- Anderson heteropoly acid; carrying out hydrothermal reaction to prepare of oxidized graphene in beaker, adding deionized water and heteropoly acid, dissolving, transferring to reaction kettle with tetrafluoroethylene, and reacting; washing with de-ionized water, freeze-drying composite material, and obtaining Fe-Anderson-type heteropoly acid with graphene; and preparing electrode material of composite material, conductive agent and binder, adding ethanol as solvent, magnetic stirring, drying, taking coated foam nickel and drying; adding potassium hydroxide as electrolyte solution by electrochemical performance test, and selecting electrode system for measuring electrochemical performance.