Disks of Oxygen Vacancies on the Surface of TiO2 Nanoparticles
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Disks of Oxygen Vacancies on the Surface of TiO2 Nanoparticles
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| Автор |
Vykhodets, V. B.
Kurennykh, T. E. Vykhodets, E. V. |
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| Тематика |
DEUTERIUM PROBES
NANOPARTICLES NUCLEAR REACTIONS OXYGEN VACANCIES TIO2 |
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| Описание |
Oxide nanopowders are widely used in engineering, and their properties are largely controlled by the defect structure of nanoparticles. Experimental data on the spatial distribution of defects in oxide nanoparticles are unavailable in the literature, and in the work presented, to gain such information, methods of nuclear reactions and deuterium probes were employed. The object of study was oxygen-deficient defects in TiO2 nanoparticles. Nanopowders were synthesized by the sol–gel method and laser evaporation of ceramic targets. To modify the defect structure in nanoparticles, nanopowders were subjected to vacuum annealings. It was established that in TiO2 nanoparticles there form two-dimensional defects consisting of six titanium atoms that occupy the nanoparticle surface and result in a remarkable deviation of the chemical composition from the stoichiometry. The presence of such defects was observed in two cases: in TiO2 nanoparticles alloyed with cobalt, which were synthesized by the sol–gel method, and in nonalloyed TiO2 nanoparticles synthesized by laser evaporation of ceramic target. The concentration of the defects under study can be varied in wide limits via vacuum annealings of nanopowders which can provide formation on the surface of oxide nanoparticles of a solid film of titanium atoms 1–2 monolayers in thickness. © 2022 by the authors.
Ministry of Education and Science of the Russian Federation, Minobrnauka, (AAAA-A19-119012990095-0) The research was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (theme “Function” no. AAAA-A19-119012990095-0). |
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| Дата |
2024-04-08T11:05:51Z
2024-04-08T11:05:51Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Vykhodets, VB, Kurennykh, TE & Vykhodets, EV 2022, 'Disks of Oxygen Vacancies on the Surface of TiO2 Nanoparticles', Applied Sciences (Switzerland), Том. 12, № 23, 11963. https://doi.org/10.3390/app122311963
Vykhodets, V. B., Kurennykh, T. E., & Vykhodets, E. V. (2022). Disks of Oxygen Vacancies on the Surface of TiO2 Nanoparticles. Applied Sciences (Switzerland), 12(23), [11963]. https://doi.org/10.3390/app122311963 2076-3417 Final All Open Access; Gold Open Access https://www.mdpi.com/2076-3417/12/23/11963/pdf?version=1669207777 https://www.mdpi.com/2076-3417/12/23/11963/pdf?version=1669207777 http://elar.urfu.ru/handle/10995/131224 10.3390/app122311963 85143731230 000910782800001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Applied Sciences
Applied Sciences (Switzerland) |
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