溶剂热法合成CoS_2纳米粉体  

Nanocrystalline Pyrite Cobalt Disulfide Synthesized by Solvent-thermal Preparation

作　　者：段鹤[1] 郑毓峰[1] 张校刚新疆大学化学系 孙言飞[1] 董有忠[1] 

机构地区：[1]新疆大学物理系,新疆乌鲁木齐830046

出　　处：《机械工程材料》2004年第5期49-51,共3页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(50062002)

摘　　要：采用溶剂热法,通过无水氯化钴与多硫化纳(Na2Sx)(2.8<x<3.5)在恒温条件下反应合成了黄铁矿结构二硫化钴纳米粉体,该方法类似水热过程,不同之处在于以有机溶剂代替水,可防止反应物在水热体系中被氧化。用XRD、SEM和TEM对所得产物进行了表征,并对合成机理进行了讨论。A solvent-thermal method was developed for the synthesis of nanocrystalline pyrite cobalt disulfide at constant temperature by the reaction of CoCl_2·6H_2O with Na_2S_x (2.8<x<3.5). This method is similar to the well-known hydrothermal process except that organic reagent is substituted for water, which is needed to avoid oxidation of the precursor during the reaction. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In addition, the posstble reaction mechanism was also discussed.

关 键 词：CoS2 溶剂热法 纳米材料 黄铁矿结构 

分 类 号：TQ138.1[化学工程—无机化工]