电化学法制备纳米铜粉  

Preparation of copper nano-powder by using electrochemical method

作　　者：徐建林[1] 陈纪东[1] 张定军[1] 马应霞[1] 冉奋[1] 龙大伟[1] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料重点实验室

出　　处：《兰州理工大学学报》2008年第3期9-11,共3页Journal of Lanzhou University of Technology

基　　金：兰州理工大学博士基金(SB01200608)的资助.

摘　　要：在十二烷基硫酸钠、吐温80、苯、正丁醇、十二烷基硫醇和硫酸铜混合而成的乳液中，采用电化学合成的方法制备稳定的、粒径均匀的Cu纳米颗粒．采用XRD、TEM及FT—IR对所制备的Cu纳米颗粒的结构、形貌、粒径大小及表面键合性质进行表征．结果表明，制备的纳米铜粉为球型颗粒，分散较好，尺寸较为均匀，约为60-80nm，并且具有立方晶型结构；得到的纳米铜颗粒表面含有一层有机物质，形成了包覆层较薄的核壳结构，这种包覆层阻止了纳米铜粉在空气中或水中的团聚和氧化，起到提高纳米铜颗粒的分散性和稳定性的作用．Stable and uniform Cu nanoparticles was prepared with electrochemical method in emulsions containing of sodium dodecyl sulfate, tween 80, benzene, 1-butanol, dodecyl mercaptan and CuSO4 · 5H2O. The morphology and structure of the resulting copper nanoparticles were investigated with XRD, TEM and FT-IR. It was found that the copper nano-powder was of spherical structure with a better dispersity, uniform particlesize, the average size being 60-80nm and cubic crystalline. A layer of organic compound was absorbed on the surface of copper nanoparticles, forming a shell-core structure with thin surface coating film, which could be prevent the Cu nano-powder from aggregation and oxidation in the atmosphere or water, and increase the dispersibility and stability of the Cu nanoparticles as well.

关 键 词：纳米颗粒 CU 乳液 电化学 

分 类 号：TB383[一般工业技术—材料科学与工程]