乙醇sol-gel法制备二元Skutterudite化合物纳米粉体  

Synthesis of nano-crystalline binary Skutterudite compound via ethanol sol-gel process

作　　者：褚颖[1] 唐新峰[1] 赵文俞[1] 张清杰[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《功能材料》2007年第5期839-841,共3页Journal of Functional Materials

基　　金：国家自然科学基金重大国际合作资助项目(50310353)

摘　　要：首次采用乙醇sol-gel法制备二元Skutteru-dite化合物CoSb3纳米粉体。以CoCl2.6H2O和SbCl3为初始原料,乙醇为溶剂,柠檬酸为络合剂,经过溶胶-凝胶过程,将干燥凝胶研磨成粉,然后置于管式气氛炉中进行还原热处理。研究结果表明,当Sb/Co和C6H8O7/Co的摩尔配比适当,且还原气氛为H2,温度为300-600℃,最终可得到平均粒径尺寸在30nm左右的CoSb3纳米粉体。In this paper nano-crystalline binary Skutterudite compound CoSb3 was synthesized by ethanol sol-gel process for the first time. The starting reagents were CoCl2 · 6H2O, SbCl3, solvent of ethanol and eomplexing agent of citric acid. After obtaining sol-gel, the dry gel was grinded and reduced at tube furnace. The results indicate that CoSb3 compound powder with about 30nm was obtained through redueation processing under 300 to 600℃ while flowing pure hydrogen and with proper moral ratios of Sb/Co and C6 H8O7/Co.

关 键 词：乙醇sol-gel SKUTTERUDITE 纳米粉体 

分 类 号：TQ031.6[化学工程]