电化学法制备微米级镍粉条件初探

摘要

Objective:To search for technological conditions for p reparing micro-size nickel powder.Methods:The effects of negative po le materials,additives and the time of taking powder off from the negative pole on the nickel particle diameter were tested step by step in NISO4-7H2O-NH 4CI-NaCI system to screen the finest technical condition.Results: When titanium was negative pole material and suitable additives were added,the s horter the time of taking nickel powder out of the pole was ,the smaller the nic k el particle diameter would be.Conclusion:The suitable negative pole m aterial and additives are properly selected,the time of taking powder is strictl y controlled,the micro-size nickel powder can be satisfactorily prepared.%目的：寻求制备微米级镍粉的工艺条件。方法： 在NiSO4*7H2O-NH4COCl-NaCl体系中试验了阴极材料、添加剂和取粉时间对 镍 粉粒径的影响。结果：当以钛为阴极，加适当添加剂时取粉时间越短，镍 粉粒径越小。结论：选择合适的阴极材料、添加剂并控制取粉时间可制备 出微米级镍粉。