EPR Study of TiO2 (Rutile) Doped with Vanadium

被引：0
|
作者：
A. I. Kokorin
A. A. Sukhanov
O. I. Gromov
V. M. Arakelyan
V. M. Aroutiounian
V. K. Voronkova
机构：
[1] Russian Academy of Sciences,N. N. Semenov Institute of Chemical Physics
[2] Russian Academy of Sciences,Zavoisky Kazan Physical
[3] M. V. Lomonosov Moscow State University,Technical Institute
[4] Yerevan State University,Chemistry Department
来源：
Applied Magnetic Resonance | 2016年 / 47卷
关键词：
TiO2; Vanadium; Rutile; Briquette; Vanadium Center;
D O I：
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中图分类号：
学科分类号：
摘要：
Samples of titanium dioxide, TiO2, doped with vanadium ions (0.1 ≤ [Vn+]0 ≤ 5.0 at. %) at high temperature, were prepared in a polycrystalline state and investigated using X-, Q-, and W-band electron paramagnetic resonance, EPR, spectroscopy. Substitutional and interstitial V4+ centers in TiO2 lattice have been both observed in EPR spectra, and their spin-Hamiltonian parameters were calculated. Portions of paramagnetic and diamagnetic species of Vn+ ions were estimated. The effect of additional high temperature annealing on the valence state of vanadium centers is discussed.
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页码：479 / 485
页数：6
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