Preparation method of Ni5P4 and Ni2P mixed material based on tetrabutyl phosphonium chloride

The invention provides a preparation method of a Ni5P4 and Ni2P mixed material based on tetrabutyl phosphonium chloride. The preparation method comprises the following steps: step S1, pretreating tetrabutyl phosphonium chloride; s2, putting a nickel source and a phosphorus source into the pretreated tetrabutyl phosphonium chloride, and heating for a certain time at a set temperature in a nitrogen protective atmosphere to obtain a Ni5P4 and Ni2P mixed material; tetrabutyl phosphorus chloride is used as a solvent for preparing the mixed material of Ni5P4 and Ni2P, tetrabutyl phosphorus chloride is used as an ionic liquid, and due to low volatility of tetrabutyl phosphorus chloride, small pressure is formed in the process of preparing the mixed material of Ni5P4 and Ni2P; the problem of poor safety caused by high pressure of a closed system due to continuous volatilization of a solvent in a solvothermal method can be solved, so that the aim of safely preparing the Ni5P4 and Ni2P mixed material is fulfilled. 本发明提