中文摘要：

为了研究镍磷纳米颗粒（Ni-P）的晶化对其催化析氢性能的影响,利用自催化还原反应及热处理工艺制备非晶Ni-P纳米颗粒及晶态Ni（12）P5。通过对样品进行电催化析氢性能分析,发现晶化的Ni（12）P5与晶化前的Ni-P相比,其催化析氢性能有了极大的提升。X射线衍射、透射电子显微镜及X射线光电子能谱分析结果表明,Ni（12）P5中形成了Ni-P键,使其中的Ni、P分别带有微弱的正、负电荷,[Ni Fe]氢化酶及其同系物的这种性质类似,会减少析氢过程中氢气脱离的能量消耗,Ni（12）P5的高效催化析氢性能可能与此有关。

英文摘要：

In order to investigate the effect of nickel phosphide nanoparticles’ （Ni-P NPs） crystallization on hydrogen evolution reaction （HER） catalytic performance, amorphous Ni-P NPs and crystalline Ni12P5 were synthesized by a simple and low-cost autocatalytic reduction method and heat treatment process. The result of electrochemical tests shows that crystalline Ni12P5 has much higher HER catalytic activity than the amorphous one. X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy revealed that Ni？P bond formed during crystallization, making Ni positively charged and P negatively charged. This charged nature of Ni12P5 is similar to [NiFe] hydrogenase and its analogous, which make the removal of H2 less energy-cost.