机构地区: 大连理工大学化工学院石油化工学院
出 处: 《化学工程师》 2005年第1期1-3,共3页
摘 要: 利用高温液相二醇还原法 ,在两种表面活性剂存在下制备出磁性钴的超细粉末。利用X射线衍射、X射线光电子能谱、扫描电镜和激光光散射仪等对所制备的超细钴粉末结构、价态、颗粒尺寸分别进行了表征分析 ,结果表明该种方法制备的超细钴粉末具有hcp相 ,平均粒径大约为 0 .4 μm。 Magnetic ultrafine cobalt powder is synthesized by high temperature solution phase diol reduction method in the presence of two kinds of surfactants. The structure and the valency state of ultrafine cobalt powder are measured by XRD and XPS; the dimension is surveyed by SEM and laser particle sizer detector respectively. The result shows that the ultrafine cobalt powder consists of hcp phase and the average size is about 0.4μm.