作　　者： ; ; ; (陈慧玉）;

机构地区： 深圳大学理学院

出　　处： 《化工新型材料》 2005年第11期48-49,71,共3页

摘　　要： 在表面活性剂聚乙烯吡咯烷酮(PVP)的保护下,采用水合肼于水体系中还原铜盐而得到铜纳米粒子。通过XRD检验确认该种方法合成的铜纳米粒子具有fcc相;XPS的表征结果显示:铜纳米粒子表面价态为零价,说明制备过程中没有被氧化;用透射电镜和激光光散射仪对粒子的表面形貌和粒径进行了表征分析,结果显示粒径在35nm左右,近似圆球形,在正己烷中分散效果较好。 Copper salts were reduced to copper nanoparticles by hydrazine reduction method in the water system. The particles were packed by polyvinylpyrrolidone（PVP） to protect oxidation. The structure and the valency state of copper nanoparticles were measured by XRD and XPS;the dimension was surveyed by TEM and laser particle sizer detector respectively. The result showed that the copper nanoparticles consist of fcc phase, and the average size is about 35nm. The circular grains were dispersed well in the hexane.

关 键 词： 铜纳米粒子 联氨还原法 制备方法 水合肼 结构表征

领　　域： [化学工程] [一般工业技术]