中国科学技术大学研究开发出一种纳米金属钴粉或镍粉的制备方法。它将钴盐或镍盐重量 2～ 5倍的ＮａＯＨ加入到钴或镍离子摩尔量 3倍以上的水合肼溶液中 ,再与钴盐或镍盐的醇 水溶液混合均匀 ,反应即自动进行。所得纳米钴粉或镍粉具有很好的磁学性能和催化性能。该方法原料价廉 University of Science and Technology of China has developed a method for preparing nano-metallic cobalt powder or nickel powder. The method comprises the following steps: adding 2 to 5 times weight of cobalt salt or nickel salt into hydrazine hydrate solution with molar amount of cobalt or nickel ion more than 3 times and mixing with cobalt salt or nickel salt alcohol solution evenly, and the reaction is carried out automatically. The resulting nano-cobalt powder or nickel powder has good magnetic properties and catalytic properties. The method of inexpensive raw materials