Ba2SrCe2TbO9陶瓷的Pawley精修及缺陷化学研究

doi:10.16039/j.cnki.cn22-1249.2022.03.007

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摘要

采用固相反应法制备了Ba2SrCe2TbO9（简称B2SC2T）陶瓷。通过X射线衍射（XRD）、电子顺磁共振（EPR）和X射线光电子能谱（XPS）技术研究了B2SC2T陶瓷的晶体结构和缺陷化学。XRD结果表明，B2SC2T陶瓷具有三斜钙钛矿结构，ESR和XPS证明Ce以Ce4+形式存在，Tb以Tb3+/Tb4+的混合价态形式存在。

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	苏雅丽
	于新宇
	路大勇
	刘巧丽

关键词: Pawley精修缺陷化学电子顺磁共振 X射线光电子能谱

Abstract:

Ba2SrCe2TbO9 ceramic (abbreviated B2SC2T) was prepared using solid-state reaction method. The crystal structure and defect chemistry of B2SC2T were investigated using X-ray diffraction (XRD), electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS). XRD results indicate that B2SC2T ceramic has a triclinic perovskite structure. EPR and XPS show that Ce ions exist as Ce4+, and Tb ions coexist in the mixed valence states of Tb3+ and Tb4+.

Key words: Pawley refinement defect chemistry electron paramagnetic resonance X-ray photoelectron spectroscopy

出版日期: 2022-03-25 发布日期: 2022-03-25 整期出版日期: 2022-03-25

ZTFLH:

O 614.23

引用本文:

苏雅丽, 于新宇, 路大勇, 刘巧丽. Ba2SrCe2TbO9陶瓷的Pawley精修及缺陷化学研究 [J]. 吉林化工学院学报, 2022, 39(3): 30-33.
SU Yali, YU Xinyu, LU Dayong, LIU Qiaoli. awley refinement and defect chemistry of Ba2SrCe2TbO9 ceramic . Journal of Jilin Institute of Chemical Technology, 2022, 39(3): 30-33.

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http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2022.03.007 或 http://xuebao.jlict.edu.cn/CN/Y2022/V39/I3/30

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