钇掺杂镨酸钡超细粉体的合成与性能-中国有色金属学报.pdfVIP

第 17 卷第 4 期 中国有色金属学报 2007 年 4 月 Vol.17 No.4 The Chinese Journal of Nonferrous Metals Apr. 2007 文章编号：1004-0609(2007)04-0636-06 钇掺杂镨酸钡超细粉体的合成与性能 孟 波， 谭小耀， 庞兆宝 ( 山东理工大学 化工学院， 淄博 255049) 摘 要：采用溶胶低温燃烧法和硝酸盐水溶液超声喷雾热解法制备钇掺杂的镨酸钡(BaPr0.9Y0.1O3−δ)超细陶瓷粉体。 应用 XRD 、SEM、TEM 和激光粒度分析仪对陶瓷粉体的结构和组成进行表征。研究结果表明：采用溶胶低温燃 烧法制备的 BaPr0.9Y0.1O3−δ(BPY)为近似球形、粒径小于 200 nm 以及粒度分布范围窄的超细粉体；用硝酸盐水溶 液经喷雾热解法制备的 BPY 为空心球形、粒径为 1 μm 左右以及窄分布的超细粉体；BPY 粉体可以在 1 250 和 1 300 ℃烧结致密；C2 的选择性和收率较低。 关键词：BaPr0.9Y0.1O3−δ；固体电解质；超细陶瓷粉；热解 中图分类号：TQ 174.758; O 614.3 文献标识码：A Synthesis and characteristics of Y-dope BaPrO ultrafine powders 3 MENG Bo, TAN Xiao-yao, PANG Zhao-bao (College of Chemical Engineering and Technology, Shandong University of Technology, Zibo 255049, China) Abstract: BaPr0.9Y0.1O3−δ ultrafine powders with homogeneous composition were synthesized via low temperature combustion process and ultrasonic spray pyrolysis method. The BaPr0.9Y0.1O3−δpowders, obtained by combustion and spray pyrolysis, were characterized using X-ray diffractometer, scanning electron microscope, transmission electron microscope and laser particle size analyzer. The results show that the powders obtained by combustion are nano-particles with size less than 200 nm, showing almost-spherical morphology. The powders obtained by spray pyrolysis are uniform hollow spherical particles with about 1 μm in diameter and agglomerate free with a narrow size distribu