PEG还原Cu(Ⅱ)制备Cu_2O纳米立方晶  

Preparation of Cu_2O Nanocubes by Using PEG as Reducing Agent

作　　者：曾小巍[1] 张玉红[1] 骆成才[1] 曾跃武[1] 王彦广[1] 

机构地区：[1]浙江大学化学系,杭州310027

出　　处：《无机化学学报》2005年第10期1515-1519,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20373061);浙江省自然科学基金(No.202035)资助项目

摘　　要：Cuprous oxide (Cu2O) nanocubes have successfully been prepared through a simple and novel method by heating Cu(ethyl acetoacetate)2 (Cu(EAC)2) and poly(ethyleneglycol) (PEG) in the absence of other chemicals. The PEG acted as the reducing agent as well as the stabilizer. The XRD results indicated that no metal Cu or CuO developed in the preparation process, and only Cu2O nanoparticles with the cuprous structure were produced. The TEM images revealed that all the Cu2O nanoparticles were cubic-shaped or square-shaped particles. The size and shape of Cu2O nanocubes were dependent on concentrations of the Cu(II) precursor, reactant temperatures, and chain length of PEGs. It is interesting that the reducing reactivity of PEG was sensitive to its chain length, and the reduction reaction activity was drastically dropped with the decreasing of polymer′s chain length.Cuprous oxide （Cu2O） nanocubes have successfully been prepared through a simple and novel method by heating Cu（ethyl acetoacetate）2 （Cu（EAC）2） and poly（ethyleneglycol） （PEG） in the absence of other chemicals. The PEG acted as the reducing agent as well as the stabilizer. The XRD results indicated that no metal Cu or CuO developed in the preparation process, and only Cu2O nanoparticles with the cuprous structure were produced. The TEM images revealed that all the CuzO nanoparticles were cubic-shaped or square-shaped particles. The size and shape of Cu2O nanocubes were dependent on concentrations of the Cu（Ⅱ） precursor, reactant temperatures, and chain length of PEGs. It is interesting that the reducing reactivity of PEG was sensitive to its chain length, and the reduction reaction activity was drastically dropped with the decreasing of polymer＇s chain length.

关 键 词：氧化亚铜纳米立方晶 PEG 二价铜盐 

分 类 号：O611.62[理学—无机化学]