均分散氧化亚铜溶胶的制备

THE PREPARATION OF MONODISPERSE SOL OF Cu_2O

均分散体系是指分散相粒子形状大小均相同的体系,我们曾研究过尿素水解法和强制水解法制备均分散氧化铜微粒.手续上大大简化.因为均分散制备不同于机械粉碎、气相沉积等方法,体系是在液相中生成晶核后,各个晶核同步生长形成的.因此,溶液中的pH、阴离子、络合剂、反应物浓度以及温度都会影响粒子生长.McFadyen 等人曾研究过酒石酸铜用葡萄糖还原氧化亚铜微粒,由于条件不同可得不同形状大小微粒.

The monodisperse sol of Cu_2O was prepared by reduction of sulfate copper oracetate copper with glucose,hydroxychloride amine and hydrazine hydrate.The dis-tribution of particle radius is very narrow.Different types of Cu_2O sol can beobtained under different conditions.