溶胶—凝胶法制备纳米氧化镁研究  

Preparation of Nanometric MgO by the Sol-Gel Method

作　　者：宋士涛[1] 邓小川[1] 孙建之[1] 马培华[1] 闫春燕[1] 魏述彬[1] 

机构地区：[1]中国科学院青海盐湖研究所

出　　处：《盐湖研究》2005年第3期38-40,共3页Journal of Salt Lake Research

基　　金：国家科技攻关计划项目(2001BA602B-01)

摘　　要：以硝酸镁和硬脂酸为原料,用溶胶—凝胶(Sol-Gel)法制备得到了纳米氧化镁微粒,并用热重(TG)分析、X-射线粉末衍射(XRD)、红外光谱(IR)和透射电镜(TEM)等对该纳米微粒的结构与形貌进行了表征。结果表明,控制Mg(NO3)2和CH3(CH2)16COOH物质的量比为1∶4,在90℃反应20 min并于360℃热处理4 h,得到立方相氧化镁纳米微粒,形貌为椭球体,分散性好,平均粒径约为33 nm。In this research, MgO nanometric powder was prepared from Mg（NO3）2 and stearic acid by Sol- Gel method. Its structure and quality had been studied by IR spectra, TG, DSC, XRD and TEM. The experiment resuhs showed that the cubic nanometric MgO powder of good dispersion could be obtained. Its shape was ellipsoidal and average diameter was 33nm, under the optimum conditions.

关 键 词：溶胶-凝胶法 纳米微粒 硬脂酸 氧化镁 

分 类 号：O611.62[理学—无机化学]