FAN Huafeng^a, MENG Zhu^b， WU Qian^c， WU Jing^a， ZHANG Jing^a， CHU Gang^a

(a. School of Petrochemical Engineering； b. Engineering Training Center；c. School of Continuing Education, Liaoning Shihua University, Fushun 113001, China)

Abstract: Pure phase nano-LaAlO3 was prepared by microwave induced combustion method with aluminum nitrate, lanthanum nitrate as oxidant and glycine as reducing agent. A new process for preparing lanthanum aluminate was developed. The properties and structure of the sample were systematically studied by SEM and XRD. The results show that the optimum conditions for LaAlO3 preparation are: the optimum quantity ratio of lanthanum nitrate, aluminum nitrate and glycine is 3∶3∶10, and the initial product of lanthanum aluminate powder is obtained by heating the microwave power at 800 W for 5 min， and then the pure phase aluminate powder can be obtained by injecting the initial product in a muffle furnace at 700 ℃ for 4 h. The LaAlO3 powder prepared by the microwave induced combustion method has the advantages of high crystallinity, uniform particle distribution and average particle size is less than 50 nm.

Keywords: characterization; microwave induced combustion; LaAlO3

中图分类号：0614

文献标志码：A

文章编号：1008-5548(2021)05-0105-06

DOI:10.13732/j.issn.1008-5548.2021.05.013

收稿日期： 2020-12-01，修回日期：2021-01-18，在线出版时间：2021-08-16 17:16。

基金项目：国家自然科学基金项目，编号：21573101；辽宁省特聘教授项目，编号：[2015]153；辽宁省高等学校创新人才支持项目，编号：LR2017011。

第一作者简介：范华风(1996—)，女，硕士研究生，研究方向为纳米材料合成与表征。E-mail：6671161@163.com。

通信作者简介：储刚(1963—)，男，博士，教授，硕士生导师，研究方向为无机非金属纳米材料合成。E-mail：chugang@126.com。