“…Transition-metal phosphides have been of much interest owing to their important properties and potential applications in many fields, such as electricity, mechanics, corrosion-resistance, and so on [19,20]. Among these metal phosphides, Ni 2 P is very important, which has attracted considerable interest for their excellent properties and potential applications, such as corrosion-resistant, oxidation-resistant, wearproof materials [21], catalysts [22] Ni 2 P, such as the direct reaction from the elements at high temperature [20], the reduction of nickel phosphite with hydrogen [23], a mild one-pot reaction route [24] using a mixture of nickel acetate, oleylamine, trioctyphosphine, and 1-octadecene to prepare the hollow Ni 2 P nanoparticles, a solvothermal method [25] to prepare the dendritic morphology, and so on.…”