摘要
以肼作还原剂在水-乙醇体系中能够制备出高纯度的纳米镍粉。该反应动力学研究表明NiCl_2与N_2H_4的反应分两段进行，且在第一阶段反应中，对反应物Ni^(2+)、N_2H_4和产物Ni的反应级数分别为1、0和1级。此外，对N_2H_4和Ni^(2+)的不同摩尔比对反应也存在影响。
The high pure nickel nano-particles were prepared by reduction with hydrazine in the water-ethanol system. The reaction kinetic study reveals that the reactions of NiCI_2 with N_2H_4 occurrs in two stages and the reaction orders with respect to Ni^(2+), N_2H_4 and Ni are found to be 1,0 and 1. The effects of the molar ratio N_2H_4/ Ni^(2+) on the reaction is also studied.
出处
《江苏广播电视大学学报》
2004年第6期37-41,共5页
Journal of Jiangsu Radio & Television University
关键词
肼
纳米镍粉
水—乙醇体系
反应动力学
hydrazine
nickel nano-particle
water ethanol system
reaction kinetics
