均匀沉淀碳吸附耦合法制备Y_2O_3纳米粒子及表征  

Preparation and characterization of nanometer sized Y_2O_3 particles by the coupling route of homogeneous precipitation with carbon absorption

作　　者：许嘉[1] 郭贵宝[1,2] 云峰[1] 安胜利[2,3] 

机构地区：[1]内蒙古科技大学生物与化学工程学院,内蒙古包头014010 [2]北京科技大学冶金与生态工程学院,北京100083 [3]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2008年第3期245-247,共3页Journal of Inner Mongolia University of Science and Technology

基　　金：内蒙古优秀学科带头人基金资助项目(20071103);教育部第二届高校青年教师教学科研奖励计划项目

摘　　要：采用均匀沉淀碳吸附法制备氧化钇纳米粉体.探讨碳黑的加入量对粉体表面积的影响,以得到最佳的碳黑加入量.利用XRD,TEM和BET等现代物理测试方法对其物相、颗粒度、分散性、颗粒形貌和比表面积等性能进行表征.结果表明,700℃焙烧的粉体呈现良好的分散状态,比表面积为53.6m^2/g,平均颗粒直径为18nm;随着烧结温度的升高,粉体的粒径逐渐增大.Y2O3 nano-powders were synthesized by a homogeneous precipitation and carbon absoption method. The addition of carbon showed a great influence on the nano-powders. The optimum content of carbon was found. The phase, particle shapes, particle size and specific surface area of the Y2O3 powders were characterized by means of XRD, TEM and BET. The results show that nano-sized Y2O3 powder calcined at 700 ℃ has a high dispersion behavior and a surface area of 53.6 m^2/g.The average particle size is about 18 nm,and the particle size is enhanced gradually with the increase of calcination temperature.

关 键 词：均匀沉淀 碳吸附 纳米 氧化钇 

分 类 号：TG148[一般工业技术—材料科学与工程]