Hydrothermal synthesis method of nickel phosphide nanoparticles

Abstract

Nanometer nickel phosphide compounds (Ni2P and Ni12P5) were synthesized via a mild hydrothermal method with red phosphor and nickel chloride as raw materials. XRD, EDS, TEM and SEM analysis were employed to characterize the obtained products. The results showed that the as-prepared products were well crystallized and particle sizes ranged from 10 to 40 nm. Effects of raw material ratios and initial pH of reaction system on the final products were investigated. The result showed that increased P/Ni ratio benefited the formation of Ni2P but went against obtaining Ni12P5 and nanoparticles were obtained only in alkaline environment.