摘要
以氨水、N(iNO3)·26H2O为原料,用超声波在微乳液体系(含还原剂)下制备纳米Ni。介绍了超声波的空化作用,重点讨论了影响空化的因素对产物粒度的影响。利用X射线衍射(XDR)、透射电子显微镜(TEM)等对样品的成分、晶体结构、粒度及其分布进行了分析。结果表明:用此法得到的纳米Ni纯度高,粒径分布窄,平均粒径为35nm,粒径范围在30nm～40nm。
With ammonia water and Ni(NO3)2·6H2O as the raw materials,the nanometer Ni powder is prepared under micro-milk liquid system (including reducing agent) with the ultrasonic wave. This paper introduces the cavitation of the ultrasonic wave, discusses emphatically on the influence of some factors influencing the cavitation on the grain size of the products. And this paper also makes analysis on the components, crystal microstructure, the grain size and the size distribution of the samples by using X-ray diffraction (XRD), and transmission electron microscopy (TEM), etc., experimental results of which show that the purity of the nanometer Ni powder is higher, the size distribution of the nanometer Ni powder is more narrow with the average size of about 35nm and the scope of the grain size of 30 nm～40 nm.
出处
《科技情报开发与经济》
2005年第11期187-189,共3页
Sci-Tech Information Development & Economy
关键词
纳米Ni
超声波
空化作用
nanometer Ni
ultrasonic wave
cavitation
