摘要
利用ＣＴＡＢ／正己醇／水／盐反胶团体系，制备了含Ｙ２Ｏ３３％（摩尔百分比）的ＺｒＯ２超细粉末，运用冷冻蚀刻复形技术研究了反胶团的微观结构，用ＴＧ－ＤＴＡ、ＸＲＤ、ＴＥＭ、ＳＡＥＤ等分析手段对粉末及其前驱物进行了表征．实验结果表明，ＣＴＡＢ／正己醇／水／盐反胶团体系具有较大的溶盐量，其胶束微观结构良好．所获得的粉末为球形、粒度分布均匀、无硬团聚、粒径约３０ｎｍ的四方相二氧化锆．
In this work, nanosize ZrO 2 particles containing 3% Y 2O 3 were prepared by using CTAB/Hexanol/Water/Salts reversed micellar system. The microstructure of these reversed micelles were examined by Freezing-etching TEM technique, the particles were characterized by TG-DTA, XRD, TEM and SAED. Experimental results indicated that the CTAB/Hexanol/Water/Salts reversed micelles have perfect microstructure and sufficient salt uptake. The doped ZrO 2 particles prepared are spherical in shape with narrow size distribution and less agglomeration. The mean size is found to be around 30 nm.
出处
《化工冶金》
CSCD
北大核心
1997年第1期67-71,共5页
基金
国家自然科学基金资助项目
关键词
二氧化锆
反胶团
制备
Zirconia, Ultrafine powder, Reverse micelles
