YANG Yating， DUAN Shaoyong， JIANG Heng， GONG Hong
(College of Chemistry， Chemical Engineering and Environmental Engineering， Liaoning Shihua University， Fushun 113001， China)
Abstract： Pure perovskite-type KTaO3 powders were synthesized by solid state method at 600 ℃ using potassium carbonate and tantalum hydroxide with the addition of different alkaline fluorides LiF, NaF and KF. XRD, SEM, TEM, UV-Vis DRS spectrometry and laser particle size analysis were used to characterize the products. The results show that the microstructure of perovskite -type KTaO3 powders varies according to different additives. The particle size has the tendency of reduction with the order of adding LiF, NaF and KF. Perfect particles can be obtained by adding KF to the reaction system.
Keywords: perovskite-type KTaO3; alkaline fluorides; solid state method
中图分类号：O614.51+ 3 文献标志码：A
文章编号：1008-5548（2014）02-0079-04
DOI:10.13732/j.issn.1008-5548.2014.02.019
收稿日期：2013-06-26， 修回日期：2013-07-30，在线出版时间：2014-05-04。
第一作者简介：杨娅婷（1989—），女，硕士 研 究 生，研究方向为材料分析。 E-mail: iouyyt@126.com。
通信作者简介：姜恒（1967—），男，博士，教授，研究方向为绿色化学和催化。 E-mail: hjiang78@hotmail.com。
