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Structural phase transitions in ionic conductor Bi2O3by temperature dependent XPD and XAS
Zhu YC(朱英才); An PF(安鹏飞); Yu MJ(于梅娟); Hu TD(胡天斗); Xu W(徐伟)
2016
Source PublicationJournal of Physics: Conference Series
ISSN1742-6588
Volume712Issue:1Pages:12132
Corresponding Author于梅娟 ; 徐伟
SubtypeProceedings Paper
AbstractThe superionic behavior of cubic delta-phase Bi2O3, a metastable phase at high temperature, is of great interests from both scientific and technological perspectives. With the highest ionic conductivity among all known compounds, the delta-phase Bi2O3 possesses promising applications in solid-oxide fuel cells. Previous investigations pointed out the alpha to delta-phase transition occurs during the heating process, as supported by the X-ray and Neutron diffraction experiments. Through in situ measurements of the long-range order structure and the local structure by X-ray powder diffraction and X-ray absorption spectroscopy, we investigated the evolution of the structures under different temperatures. Both techniques provided ample evidence that the existence of meta-stable beta-phase are crucial for forming the defective fluorite cubic delta phase. Our finding suggested that the phase transition from tetragonal beta-phase to delta-phase is an influencing factor for the generation of the oxygen-ion pathways.
Conference Title16th International Conference on X-ray Absorption Fine Structure (XAFS)
Conference PlaceKarlsruhe Inst Technol, Karlsruhe, GERMANY
Conference DateAUG 23-28, 2015
DOI10.1088/1742-6596/712/1/012132
Indexed ByCPCI ; ADS
Language英语
WOS IDWOS:000383249000133
ADS Bibcode2016JPhCS.712a2132Z
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016JPhCS.712a2132Z
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016JPhCS.712a2132Z/citations
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/260246
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Zhu YC,An PF,Yu MJ,et al. Structural phase transitions in ionic conductor Bi2O3by temperature dependent XPD and XAS[J]. Journal of Physics: Conference Series,2016,712(1):12132.
APA 朱英才,安鹏飞,于梅娟,胡天斗,&徐伟.(2016).Structural phase transitions in ionic conductor Bi2O3by temperature dependent XPD and XAS.Journal of Physics: Conference Series,712(1),12132.
MLA 朱英才,et al."Structural phase transitions in ionic conductor Bi2O3by temperature dependent XPD and XAS".Journal of Physics: Conference Series 712.1(2016):12132.
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