文献类型：期刊文献

中文题名：超细铜粉的水合肼还原法制备及其稳定性研究

英文题名：Preparation and Stability of Ultrafine Copper Powders Using Hydrazine Hydrate as Reductive Agent

作者：赵斌[1,2];刘志杰[1,2];蔡梦军[1,2];胡黎明[1,2]

机构：[1]华东理工大学化学系;[2]华东理工大学国家超细粉末工程研究中心

年份：1997

卷号：23

期号：3

起止页码：372

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：1997123980622);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：铜粉;水合肼;制备;稳定性;超微粒;还原剂

外文关键词：utrafine; copper powder; hydrazine hydrate; preparation; stability

摘要：以水合肼为还原剂分别制备了不同粒径的超细铜粉，研究了铜粉的制备工艺和不同粒径的铜粉在空气中的稳定性：２００ｎｍ以下的铜粉在空气中不能稳定存在；３００～４００ｎｍ的铜粉在空气中其表面会逐渐被氧化成氧化亚铜；５００ｎｍ以上的铜粉在空气中是稳定的。还采用葡萄糖预还原法改善了以水合肼直接还原得到的铜粉的均匀性。
Different sized copper powders were prepared by chemical reduction method in aqueous solutions,using hydrazine hydrate as a reductive agent.Detailed procedures and stability of the obtained powders were studied;copper powders below 200nm are unstable in the air at normal temperature,copper powders from 300～400nm can be gradually oxidized in the air and copper powders beyond 500nm are very stable in the air.Also,the size distribution improvement of the powders generalized by direct reduction of copper sulfate with hydrazine hydrate was achieved by pre reduction method with glucose.