沉淀法制备纳米Co_3O_4前驱体的研究  

Investigation of Decomposition Process of Precursor of Nano-sized Co_3O_4 by Liquid-precipitating Method

作　　者：曹钦存[1] 张战营[1] 

机构地区：[1]洛阳理工学院环境与化学系,河南洛阳471023

出　　处：《洛阳工业高等专科学校学报》2007年第3期5-7,共3页Journal of Luoyang Technology College

摘　　要：采用沉淀法合成了纳米Co3O4前驱体,用DTA、XRD等手段对前驱体的分解过程进行了研究。结果表明前驱体是无定形沉淀物。随着温度的升高,前驱体先脱去自由水和吸附水,在321℃下分解为Co3O4,在920℃下转变为CoO粉体。The precursor of Co3O4 nanometer particles is synthesized through settlement under given conditions. The decomposition process is studies by DTA and XRD. The results indicate that the precursor is amorphous precipitate. With the temperature increasing the precursor firstly loses its free water and structure water. Then the precursor decomposes into Co3O4 nanometer particles at 321℃ and change into CoO nanometer particles at 920℃.

关 键 词：沉淀法 Co3O纳米粉体 前驱体 

分 类 号：TQ420.62[化学工程]