Nickel-cobalt Prussian blue analogue nano-film material and preparation method thereof

The invention provides a preparation method of a nickel-cobalt prussian blue analogue nano-film material, which is characterized by comprising the following steps of: immersing pretreated carbon fiber paper serving as a substrate into electrolyte A consisting of cobalt potassium cyanide, nickel nitrate hexahydrate, potassium nitrate, diluted hydrochloric acid and boric acid, and performing electrochemical deposition to obtain the nickel-cobalt prussian blue analogue nano-film material. And growing the nickel-cobalt prussian blue analogue nano-film material on the substrate in situ. The growth of the nano material is regulated and controlled by adjusting the electrochemical deposition method and the conditions of the electrochemical deposition method, the nickel-cobalt nano particles with uniform size and stable morphology are obtained on the substrate through the electrochemical deposition method for the first time, and a system for preparing Prussian blue-like nano particles through the electrochemical depos