X-Ray Diffraction and X-Ray Spectroscopy Studies of Cobalt-Doped Anatase TiO2:Co Nanopowders
V V Mesilov
1
,
V R Galakhov
1
,
A. F. Gubkin
2
,
E Sherstobitova
1
,
G.S. Zakharova
3
,
M A Uimin
2
,
A.Ye. Yermakov
2
,
K O Kvashnina
4, 5
,
D. A. Smirnov
6
1
Институт физики металлов им. М.Н. Михеева Уральского отделения Российской академии наук (ИФМ УрО РАН)
Publication type: Journal Article
Publication date: 2017-10-19
scimago Q1
wos Q3
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
Co-doped TiO2 is one of the most extensively studied oxides for applying as dilute magnetic semiconductors due to its room temperature magnetism. Here we present results of the studies of Ti0.97Co0.03O2 nanopowders synthesized by hydrothermal method by means of X-ray diffraction, soft X-ray absorption spectroscopy (Ti L2,3 and Co L2,3 spectra), hard X-ray absorption spectroscopy (Co K spectra), and 1s3p resonant inelastic X-ray scattering at the Co K edge. According to X-ray diffraction data and Ti L2,3 X-ray absorption spectra, all the samples before the thermal treatment exhibit anatase structure with substantial amount of amorphous phase. After annealing the Ti0.97Co0.03O2 samples in vacuum or hydrogen at 700oC, the anatase structure persists while amorphous phase contribution is eliminated. Surface sensitive soft X-ray absorption Co L2,3 spectroscopy revealed only Co2+ ions tetrahedrally coordinated by oxygen ions and no sign of metallic Co. Co2+ tetrahedral sites (instead of typical octahedral ones) ...
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Mesilov V. V. et al. X-Ray Diffraction and X-Ray Spectroscopy Studies of Cobalt-Doped Anatase TiO2:Co Nanopowders // Journal of Physical Chemistry C. 2017. Vol. 121. No. 43. pp. 24235-24244.
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Mesilov V. V., Galakhov V. R., Gubkin A. F., Sherstobitova E., Zakharova G., Uimin M. A., Yermakov A., Kvashnina K. O., Smirnov D. A. X-Ray Diffraction and X-Ray Spectroscopy Studies of Cobalt-Doped Anatase TiO2:Co Nanopowders // Journal of Physical Chemistry C. 2017. Vol. 121. No. 43. pp. 24235-24244.
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RIS
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TY - JOUR
DO - 10.1021/acs.jpcc.7b05873
UR - https://doi.org/10.1021/acs.jpcc.7b05873
TI - X-Ray Diffraction and X-Ray Spectroscopy Studies of Cobalt-Doped Anatase TiO2:Co Nanopowders
T2 - Journal of Physical Chemistry C
AU - Mesilov, V V
AU - Galakhov, V R
AU - Gubkin, A. F.
AU - Sherstobitova, E
AU - Zakharova, G.S.
AU - Uimin, M A
AU - Yermakov, A.Ye.
AU - Kvashnina, K O
AU - Smirnov, D. A.
PY - 2017
DA - 2017/10/19
PB - American Chemical Society (ACS)
SP - 24235-24244
IS - 43
VL - 121
SN - 1932-7447
SN - 1932-7455
ER -
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BibTex (up to 50 authors)
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@article{2017_Mesilov,
author = {V V Mesilov and V R Galakhov and A. F. Gubkin and E Sherstobitova and G.S. Zakharova and M A Uimin and A.Ye. Yermakov and K O Kvashnina and D. A. Smirnov},
title = {X-Ray Diffraction and X-Ray Spectroscopy Studies of Cobalt-Doped Anatase TiO2:Co Nanopowders},
journal = {Journal of Physical Chemistry C},
year = {2017},
volume = {121},
publisher = {American Chemical Society (ACS)},
month = {oct},
url = {https://doi.org/10.1021/acs.jpcc.7b05873},
number = {43},
pages = {24235--24244},
doi = {10.1021/acs.jpcc.7b05873}
}
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Mesilov, V. V., et al. “X-Ray Diffraction and X-Ray Spectroscopy Studies of Cobalt-Doped Anatase TiO2:Co Nanopowders.” Journal of Physical Chemistry C, vol. 121, no. 43, Oct. 2017, pp. 24235-24244. https://doi.org/10.1021/acs.jpcc.7b05873.
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