Ni_(2)P/Cu_(3)P复合纳米材料的制备、表征及电催化性能研究

Hydrothermal Synthesis,Characterization and Electrocatalytic Hydrogen Evolution of Ni_(2)P/Cu_(3)P Nanomaterials

以赤磷作为磷源,分别以氯化铜、氯化镍为铜源和镍源,通过水热法成功合成磷化铜Cu3P和磷化镍Ni2P纳米颗粒.研究不同水热温度和晶化时间对产物结构的影响,采用X射线衍射(XRD)、扫描电镜(SEM)对合成产物的晶体结构和形貌进行表征.通过机械研磨的方法制备了不同比例的Ni2P/Cu3P纳米复合材料,并研究纳米复合材料的析氢性能.研究结果表明:Ni2P/Cu3P纳米复合材料比单独的磷化镍和磷化铜的析氢性能好,摩尔质量比例为4∶1时析氢催化效果最好.

The red phosphorus was used as the phosphorus source,and copper chloride,nickel chloride was used as the copper source and nickel source respectively. The copper phosphide Ni2P and nickel phosphide Cu3P nanoparticles were successfully synthesized by hydrothermal method. The effects of hydrothermal temperature and crystallization time on the structure of the products were studied. The crystal structure and morphology of the products were characterized by X-ray diffraction( XRD) and scanning electron microscopy( SEM). Ni2P/Cu3P nanocomposites with different ratios were prepared by mechanical grinding. The hydrogen evolution performance of the nanocomposites was studied. The results show that the hydrogen evolution performance of Ni2P/Cu3P nanocomposites is better than that of nickel phosphide and copper phosphide alone. The catalytic effect of hydrogen evolution is best when the ratio is 4∶ 1.