PVP Effect on the Preparation and Growth Mechanism of Monodispersed Ni Nanoparticles
Monodispersed Ni nanoparticles were successfully prepared by chemical reduction with hydrazine hydrate in ethylene glycol. The effect of the amount of PVP on the preparation of Ni nanoparticles was investigated. X-ray diffraction (XRD), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) were employed to characterize the nickel powders. In this investigation, the average nickel particle size could be controlled from 103 nm to 46 nm with increasing mass ratio of PVP to NiCl2?H2O. The particles are spherical in shape and not being agglomerated. A possible extensive mechanism of nickel nanoparticles formation has been suggested.
Monodispersed Ni nanoparticles Chemical reduction PVP Nucleation mechanism
刘晓丹 郭敏 张梅 王习东 郭潇 周国治
北京科技大学物理化学系,北京,100083 北京大学工学院,北京,100871
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）