微乳体系中纳米La2O3的制备  

Synthesis of La2O3 Nanoparticles in Microemulsion

作　　者：赵光哲[1] 李华峰[1] 陈国需[1] 周骥[1] 

机构地区：[1]后勤工程学院军事油料应用与管理工程系,重庆400016

出　　处：《后勤工程学院学报》2008年第1期29-32,共4页Journal of Logistical Engineering University

基　　金：重庆市自然科学基金重点资助项目(CSTC,2005BA4109)

摘　　要：用微乳法在AEO-3、正己烷体系中制备La2O3，纳米粉体，并用X射线粉末衍射（XRD），透射电子显微镜（TEM）及激光粒度仪对制备的La2O3纳米粉体产物结构、形貌和粒径分布进行了表征。结果表明，经热处理后的La2O3产物粒子主要为六方晶形，团聚现象不明显。粉体产物的粒径主要分布于25nm-35nm之间，分布区间较窄，且随体系中增溶反应物含量的提高产物粒子粒径呈增大的趋势。La2O3 nanoparticles were synthesized in microemulsion with AEO -3 as surfactant and hexane as oil phase. The structure, shape and grain size of the nanoparticles were characterized by XRD,TME and laser particle analysis. The results show that the La2O3 nanoparticle after heat treatment is hexagonal and disperses well. The grain size is about 20 nm-30 nm in diameter, and with the increase of reactants in microemulsion the grain size of product increases.

关 键 词：微乳法 氧化镧 AEO-3 正己烷 

分 类 号：TQ133.3[化学工程—无机化工]