Determination of Radicals Energy Levels in the Bandgap of Nanocrystalline Oxides of Titanium, Molybdenum, and Vanadium Using EPR Spectroscopy
Publication type: Journal Article
Publication date: 2021-07-01
scimago Q4
wos Q4
SJR: 0.153
CiteScore: 1.5
Impact factor: 0.5
ISSN: 10283358, 15626903
General Physics and Astronomy
Mechanics of Materials
Computational Mechanics
Abstract
A new method for constructing energy band diagrams based on EPR spectroscopy data is proposed and applied to study nitrogen-doped nanocrystalline oxides of titanium, molybdenum, and vanadium (TiO2, MoO3, V2O5) with a specific surface area of about 100 m2/g and an average nanoparticle size of 10–15 nm. Nitrogen N• radicals and Ti3+ centers were detected in TiO2, N•, NO• centers and Mo5+ ions in MoO3, and V4+ centers in V2O5. The defect concentrations were 6.5 × 1017, 9.8 × 1016, and 2 × 1017 g–1, respectively. The position of the radical energy levels in the forbidden band is determined using the EPR method. The unique properties of TiO2 with a high concentration of radicals and a photocatalysis rate can be used to create energy-efficient photocatalytic devices operating in the visible range of the spectrum.
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Kytina E. V. et al. Determination of Radicals Energy Levels in the Bandgap of Nanocrystalline Oxides of Titanium, Molybdenum, and Vanadium Using EPR Spectroscopy // Doklady Physics. 2021. Vol. 66. No. 7. pp. 191-194.
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Kytina E. V., Parkhomenko E. R., Nazarova E. A., Konstantinova E. A. Determination of Radicals Energy Levels in the Bandgap of Nanocrystalline Oxides of Titanium, Molybdenum, and Vanadium Using EPR Spectroscopy // Doklady Physics. 2021. Vol. 66. No. 7. pp. 191-194.
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TY - JOUR
DO - 10.1134/s102833582107003x
UR - https://doi.org/10.1134/s102833582107003x
TI - Determination of Radicals Energy Levels in the Bandgap of Nanocrystalline Oxides of Titanium, Molybdenum, and Vanadium Using EPR Spectroscopy
T2 - Doklady Physics
AU - Kytina, E V
AU - Parkhomenko, E R
AU - Nazarova, E A
AU - Konstantinova, E A
PY - 2021
DA - 2021/07/01
PB - Pleiades Publishing
SP - 191-194
IS - 7
VL - 66
SN - 1028-3358
SN - 1562-6903
ER -
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@article{2021_Kytina,
author = {E V Kytina and E R Parkhomenko and E A Nazarova and E A Konstantinova},
title = {Determination of Radicals Energy Levels in the Bandgap of Nanocrystalline Oxides of Titanium, Molybdenum, and Vanadium Using EPR Spectroscopy},
journal = {Doklady Physics},
year = {2021},
volume = {66},
publisher = {Pleiades Publishing},
month = {jul},
url = {https://doi.org/10.1134/s102833582107003x},
number = {7},
pages = {191--194},
doi = {10.1134/s102833582107003x}
}
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MLA
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Kytina, E. V., et al. “Determination of Radicals Energy Levels in the Bandgap of Nanocrystalline Oxides of Titanium, Molybdenum, and Vanadium Using EPR Spectroscopy.” Doklady Physics, vol. 66, no. 7, Jul. 2021, pp. 191-194. https://doi.org/10.1134/s102833582107003x.