WU Zhiwen1,2,GAO Wengui1a,YANG Haitao2,3,HU Chaoquan2,3,WU Lirong2,4,HUANG Lingyun1,LI Lei1
(1a.Faculty of Metallurgical and Energy Engineering;1b.State Key Laboratory of Clean Utilization in Complex Non-ferrous Metal Resources, Kunming University of Science and Technology,Kunming 650093,China;2.State Key Laboratory of Multiphase Complex Systems；Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;3.School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;4.Nanjing IPE Institute of Green Manufacturing Industry,Nanjing 211135,China)
Abstract:Preparation principle and process of nickel powders by using liquid phase pressurized hydrogen reduction method,electroless plating method,and electrodeposition method were reviewed.Research progress of nickel coated powders as summarized from preparation principle of nickel coating,as well as preparation process of nickel coated copper and nickel coated graphite.Preparation principle and process of silver-coated nickel powders were summarized.It is considered that nickel anductine powders have good oxidation resistance and electrical conductivity whcih are widely used in electromagnetic shielding.Core-shell structure composite powders have prominent advantages in performance,cost and other aspects.Higher requirements for particle size uniformity,surface smoothness,purity and other powder indexes are put forward.It is put forword that electroless plating process is used to prepare nickel conductive powder at room temperature and pressure,but the coating contains phosphorus,boron and other impurities.The purity of the coating is low,and the amount of wastewater is large.Pressurized hydrogen reduction process has high purity of coating and small amount of wastewater.Electrodeposition process uses electric energy as reducing agent,the amount of waste water is small,and the purity of coating is high.
Keywords:nickel powder;nickel coated copper powder;nickelcoated graphite powder;silver coated nickel powder;electromagnetic shielding;core-shell structure;pressurized hydrogen reduction;electroless plating;electrodeposition
中图分类号： TF125 文献标志码：A
文章编号：1008-5548(2022)02-0016-10
DOI:10.13732/j.issn.1008-5548.2022.02.003
收稿日期： 2021-07-10，修回日期：2021-10-14，在线出版时间：2022-01-24。
基金项目：国家自然科学基金项目，编号：22078328；51964024；51504231；云南省中青年学术和技术带头人培养项目，编号：KKSY201952020；省部共建复杂有色金属资源清洁利用国家重点实验室开放基金项目：编号：CNMRCUKF1704；中科院过程工程研究所南京绿色制造产业创新研究院资助项目，编号：E0010705。
第一作者简介：吴志文(1995—)，男，硕士研究生，研究方向为流化床电极制备复合粉体。E-mail:2425707381@qq.com。
通信作者简介：
高文桂(1973—)，女，副教授，硕士，研究方向为冶金工程。E-mail:792252403@qq.com；
杨海涛(1988—)，男，副研究员，博士，研究方向为流态化基础理论与工程应用。E-mail:yhtao@ipe.ac.cn。
