Preparation method of pre-alloyed porous nickel-based electrolytic hydrogen evolution cathode material

The invention provides a Ni-Fe-Mo-Mn porous material. The Ni-Fe-Mo-Mn porous material is prepared by the steps of accurately weighing 15 to 21 percent of ferro-molybdenum, 11 to 16 percent of ferro-manganese, 7 to 9 percent of iron powder the balance of nickel, preparing pre-alloyed powder by adopting an atomization technology and sintering in vacuum. The porous material prepared by the inventionhas abundant, uniform and controllable pores and has the advantages of large specific surface area, low hydrogen evolution overpotential, good catalytic performance, good corrosion resistance, stableworking performance, simple and environment-friendly preparation technology and the like; the preparation cost is low and the technology is simple and easy to realize. The porous material prepared bythe invention can be used as the electrolytic hydrogen evolution cathode material. 本发明将质量百分比为钼铁15~21%、锰铁11~16%、铁粉7~9%、镍为余量的比例进行精确称量后，先采用雾化工艺制备预合金化粉末，再采用真空烧结制备Ni-Fe-Mo-Mn多孔材料。本发明制得的多孔材料的孔隙丰富、均匀可控，具有比表面积大、析氢过电位低、催化性良好、耐腐蚀性优良、工作性能