Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x
In this work the peculiarities of oxygen vacancies formation in cerium oxide nanoparticles for different external influences have been investigated by spectroscopic methods. The features of oxygen vacancies and therefore non-stoichiometric cerium oxide formation in CeO2 nanocrystals depending on the...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sumy State University
2013-03-01
|
| Series: | Журнал нано- та електронної фізики |
| Subjects: | |
| Online Access: | http://jnep.sumdu.edu.ua/download/numbers/2013/1/articles/jnep_2013_V5_01004.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850159503272574976 |
|---|---|
| author | P.O. Maksimchuk A.A. Masalov Yu.V. Malyukin |
| author_facet | P.O. Maksimchuk A.A. Masalov Yu.V. Malyukin |
| author_sort | P.O. Maksimchuk |
| collection | DOAJ |
| description | In this work the peculiarities of oxygen vacancies formation in cerium oxide nanoparticles for different external influences have been investigated by spectroscopic methods. The features of oxygen vacancies and therefore non-stoichiometric cerium oxide formation in CeO2 nanocrystals depending on the atmosphere of high temperature treatment were investigated. Stimulation of oxygen vacancies formation in reducing and neutral atmospheres was revealed. Occurrence of two different luminescence centers (viz. the charge-transfer complexes formed by Ce4 + and O2 – ions, and Ce3 + ions stabilized by vacancies) after cerium oxide nanoparticles annealing in a neutral atmosphere has been observed. |
| format | Article |
| id | doaj-art-b537e6d6baf74debbee4e7c4b9dae8f7 |
| institution | OA Journals |
| issn | 2077-6772 |
| language | English |
| publishDate | 2013-03-01 |
| publisher | Sumy State University |
| record_format | Article |
| series | Журнал нано- та електронної фізики |
| spelling | doaj-art-b537e6d6baf74debbee4e7c4b9dae8f72025-08-20T02:23:31ZengSumy State UniversityЖурнал нано- та електронної фізики2077-67722013-03-0151010041Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – xP.O. MaksimchukA.A. MasalovYu.V. MalyukinIn this work the peculiarities of oxygen vacancies formation in cerium oxide nanoparticles for different external influences have been investigated by spectroscopic methods. The features of oxygen vacancies and therefore non-stoichiometric cerium oxide formation in CeO2 nanocrystals depending on the atmosphere of high temperature treatment were investigated. Stimulation of oxygen vacancies formation in reducing and neutral atmospheres was revealed. Occurrence of two different luminescence centers (viz. the charge-transfer complexes formed by Ce4 + and O2 – ions, and Ce3 + ions stabilized by vacancies) after cerium oxide nanoparticles annealing in a neutral atmosphere has been observed.http://jnep.sumdu.edu.ua/download/numbers/2013/1/articles/jnep_2013_V5_01004.pdfCerium oxide nanoparticlesOxygen vacanciesHigh temperature treatment |
| spellingShingle | P.O. Maksimchuk A.A. Masalov Yu.V. Malyukin Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x Журнал нано- та електронної фізики Cerium oxide nanoparticles Oxygen vacancies High temperature treatment |
| title | Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x |
| title_full | Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x |
| title_fullStr | Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x |
| title_full_unstemmed | Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x |
| title_short | Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x |
| title_sort | spectroscopically detected formation of oxygen vacancies in nano crystalline ceo2 x |
| topic | Cerium oxide nanoparticles Oxygen vacancies High temperature treatment |
| url | http://jnep.sumdu.edu.ua/download/numbers/2013/1/articles/jnep_2013_V5_01004.pdf |
| work_keys_str_mv | AT pomaksimchuk spectroscopicallydetectedformationofoxygenvacanciesinnanocrystallineceo2x AT aamasalov spectroscopicallydetectedformationofoxygenvacanciesinnanocrystallineceo2x AT yuvmalyukin spectroscopicallydetectedformationofoxygenvacanciesinnanocrystallineceo2x |