Robert Jackson r.a.jackson@keele.ac.uk
Study of Eu3+ -> Eu2+ reduction in BaAl2O4:Eu prepared in different gas atmospheres
Jackson
Authors
Abstract
The effect of different gas atmospheres such as H2(g), synthetic air, carbon monoxide (CO) and nitrogen (N2) on the Eu3+ ? Eu2+ reduction process during the synthesis of Eu-doped BaAl2O4 was studied using synchrotron radiation. The Eu3+ ? Eu2+ reduction was monitored analyzing XANES region when the sample are excited at the Eu LIII-edge. The results show that the hydrogen reducing agent are the most appropriate gas for Eu2+ stabilization in BaAl2O4 and that only a part of the Eu ions can be stabilized in the divalent state. A model of Eu reduction process, based on the incorporation of charge compensation defects, is proposed.
Citation
Jackson. (2015). Study of Eu3+ -> Eu2+ reduction in BaAl2O4:Eu prepared in different gas atmospheres. Materials Research Bulletin, 348 -351. https://doi.org/10.1016/j.materresbull.2014.10.054
Acceptance Date | Oct 20, 2014 |
---|---|
Publication Date | Jan 1, 2015 |
Journal | Materials Research Bulletin |
Print ISSN | 0025-5408 |
Publisher | Elsevier |
Pages | 348 -351 |
DOI | https://doi.org/10.1016/j.materresbull.2014.10.054 |
Keywords | Optical materials, XAFS (EXAFS and XANES), Optical properties |
Publisher URL | https://doi.org/10.1016/j.materresbull.2014.10.054 |
Files
Study of Eu3%2B- Eu2%2B reduction in BaAl2O4-Eu prepared in different gas atmospheres_RAJ proofed.pdf
(352 Kb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
You might also like
The Gaia-ESO Survey: 3D dynamics of young groups and clusters from GES and Gaia EDR3
(2024)
Journal Article
Effect of trivalent rare earth doping in cadmium silicates hosts: a theoretical study
(2022)
Journal Article
Downloadable Citations
About Keele Repository
Administrator e-mail: research.openaccess@keele.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search