室温离子液体中铜纳米微粒的制备及表征  

Preparation of Copper Nanoparticles in Room Temperature Ionic Liquid and Characterization of the Nanoparticles

作　　者：卢春[1] 张晟卯[1] 余来贵[1] 吴志申[1] 张治军[1] 

机构地区：[1]河南大学特种功能材料教育部重点实验室,河南开封475004

出　　处：《材料保护》2009年第1期61-64,共4页Materials Protection

基　　金：国家自然科学基金(20401006);2006年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开放课题(0502)资助项目

摘　　要：在氩气保护下,以室温离子液体1-丁基-3-甲基咪唑六氟磷酸盐{[BMI][PF6]}为介质,用钠-钾合金还原氯化亚铜,制备了铜纳米微粒。利用X射线衍射仪(XRD)、透射电子显微镜(TEM)、傅立叶转换红外吸收光谱仪(FTIR)及X射线光电子能谱仪(XPS)表征了所制备铜纳米微粒的形貌和结构;采用UMT-2摩擦磨损试验机考察了铜纳米微粒对离子液体减摩抗磨性能的影响。结果表明:在40℃下反应1h所制得的铜纳米微粒具有立方相结构,其粒径在40～50nm之间,粒径分布比较均匀;铜纳米微粒反而使得离子液体[BMI][PF6]的减摩抗磨性能变差,显示两者具有对抗效应,不宜复配使用。Copper nanoparticles were prepared under the protection of Argon gas,using room temperature ionic liquid 1-butyl-3-methyl-imid-azole hexafluorophosphate J coded as [BMI ]-PF6}| as the medi-um and Na-K alloy as the reducer for reduction of cupric chlo-ride.The morphology and microstructure of the resulting Cu nan-oparticles were analyzed by means of X-ray diffraction,transmis-sion electron microscopy,fourier transformation infrared spec-trometry,and X-ray photoelectron spectroscopy.The effect of the Cu nanoparticles on the friction-reducing and antiwear behavior of ionic liquid was investigated using a UMT-2 friction and wear tester.Results indicated that the Cu nanoparticles obtained after reaction at 40 ℃ for 1 h have cubic structure and evenly distribu-ted grit size of 40 ~ 50 nm.However,the introduction of Cu nan-oparticles was harmful to the friction-reducing and antiwear be-havior of the ionic liquid,indicating that they have antagonistic effect and cannot be formulated with each other.

关 键 词：铜纳米微粒 室温离子液体 制备 表征 摩擦学性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程]