Preparation method of icosahedron crystalline nano nickel-cobalt alloy

The invention relates to a preparation method of an icosahedron crystalline nano nickel-cobalt alloy. According to the method, under an alkaline condition, nickel salt and cobalt salt are reduced by 1,2-propylene glycol at high temperature, so as to obtain the icosahedron crystalline nano nickel-cobalt alloy. Compared with the prior art, the method provided by the invention has the advantages that the regulation and control performance for alloy constituent contents of a product is good; simple inorganic salts are respectively used as reactants, so that the commonality is good; and raw materials can be obtained easily, a catalyst, a surfactant or a template is not needed, and the cost is low. The product prepared by the method has favorable catalytic performance, can be used as a high-performance electrochemical catalyst and is wider in development prospect and application space; and the method provided by the invention is simple in process, mild in preparation conditions, stable in product appearance, high in product purity, convenient and concise in product treatment and suitable for medium-scale industrial production.