液相化学还原法制备纳米铜颗粒的研究  

Copper Nanoparticles Synthesized by Chemical Reduction

作　　者：陈磊[1] 陈建敏[1] 周惠娣[1] 贾均红[1] 皮珺 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑国家重点实验室 [2]北京中科建特纳米科技发展有限公司,北京100094

出　　处：《机械工程材料》2005年第7期65-67,共3页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(59925513)国家重点基础研究资助项目(G1999065005)

摘　　要：采用液相化学还原法,以壬基酚聚氧乙烯醚为修饰剂,水合肼为还原剂,在水及甲醇-水体系中,还原硫酸铜制备了纳米铜颗粒;利用TEM、XRD、FTIR研究了反应条件对纳米铜颗粒稳定性及粒径的影响。结果表明:在甲醇-水体系中,当壬基酚聚氧乙烯醚与硫酸铜数量(摩尔)比达到1:1时,能在纳米铜颗粒表面形成较紧密的吸附层,有助于提高纳米铜颗粒的稳定性,得到较小粒径(20nm)的纳米颗粒。Using alkylphenol ethoxylates as the modification agent, nanosized copper particles were prepared from the solution of copper sulfate with hydrazine by reductive reaction in water and methanol-water system. The stability effects and radius of nanocopper particles in various conditions of reaction were studied by TEM, XRD, FTIR The results show that the alkylphenol ethoxylates could lead to the formation of compact absorbed layer, which could improve the stability and obtain small radius of nanocopper particles when the ratio of the concentration of alkylphenol ethoxylates to copper sulfate was unit.

关 键 词：纳米 铜 制备 液相化学还原法 

分 类 号：TG146.1[一般工业技术—材料科学与工程]