Surface magnetism of cobalt-doped anatase TiO2 nanopowders
A.Ye. Yermakov
1
,
G.S. Zakharova
1, 2
,
M A Uimin
1
,
M. KUZNETSOV
2
,
S F Konev
4
,
Aleksandr Konev
1
,
A.S. Minin
1
,
V V Mesilov
1
,
V R Galakhov
1
,
A S Volegov
1
,
A.V. Korolyov
1
,
A. F. Gubkin
1
,
A M Murzakayev
4, 5
,
A D Svyazhin
1
,
K V Melanin
1
Publication type: Journal Article
Publication date: 2016-12-13
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
Cobalt-doped anatase Ti1–xCoxO2 (0 < x ≤ 0.04) nanopowders (with a particle size of 30–40 nm) were produced by the hydrothermal synthesis method. Morphology, structure, and thermal stability of the synthesized compounds were examined using transmission electron microscopy, infrared spectroscopy, and X-ray diffraction analysis. Using X-ray photoelectron spectroscopy, cobalt ions are shown to have an oxidation state of 2+, with titanium ions having a tetravalent state of Ti4+. In the as-prepared state, all investigated compounds of Ti1–xCoxO2 are paramagnetic, with the value of paramagnetic susceptibility growing in proportion to cobalt content; with the spin of cobalt ion equal to S = 3/2. Analysis of the electron paramagnetic resonance spectra reveals that doping TiO2 with cobalt (up to 2%) is accompanied by a significant increase in the concentration of F+ centers. Further growth of the cobalt content results in a relatively wide line (nearly 600 Oe) in the spectrum, with a g-factor of about 2.005, demon...
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Total citations:
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GOST
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Yermakov A. et al. Surface magnetism of cobalt-doped anatase TiO2 nanopowders // Journal of Physical Chemistry C. 2016. Vol. 120. No. 50. pp. 28857-28866.
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Yermakov A., Zakharova G., Uimin M. A., KUZNETSOV M., Molochnikov L. S., Konev S. F., Konev A., Minin A., Mesilov V. V., Galakhov V. R., Volegov A. S., Korolyov A., Gubkin A. F., Murzakayev A. M., Svyazhin A. D., Melanin K. V. Surface magnetism of cobalt-doped anatase TiO2 nanopowders // Journal of Physical Chemistry C. 2016. Vol. 120. No. 50. pp. 28857-28866.
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RIS
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TY - JOUR
DO - 10.1021/acs.jpcc.6b10417
UR - https://doi.org/10.1021/acs.jpcc.6b10417
TI - Surface magnetism of cobalt-doped anatase TiO2 nanopowders
T2 - Journal of Physical Chemistry C
AU - Yermakov, A.Ye.
AU - Zakharova, G.S.
AU - Uimin, M A
AU - KUZNETSOV, M.
AU - Molochnikov, Leonid S.
AU - Konev, S F
AU - Konev, Aleksandr
AU - Minin, A.S.
AU - Mesilov, V V
AU - Galakhov, V R
AU - Volegov, A S
AU - Korolyov, A.V.
AU - Gubkin, A. F.
AU - Murzakayev, A M
AU - Svyazhin, A D
AU - Melanin, K V
PY - 2016
DA - 2016/12/13
PB - American Chemical Society (ACS)
SP - 28857-28866
IS - 50
VL - 120
SN - 1932-7447
SN - 1932-7455
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2016_Yermakov,
author = {A.Ye. Yermakov and G.S. Zakharova and M A Uimin and M. KUZNETSOV and Leonid S. Molochnikov and S F Konev and Aleksandr Konev and A.S. Minin and V V Mesilov and V R Galakhov and A S Volegov and A.V. Korolyov and A. F. Gubkin and A M Murzakayev and A D Svyazhin and K V Melanin},
title = {Surface magnetism of cobalt-doped anatase TiO2 nanopowders},
journal = {Journal of Physical Chemistry C},
year = {2016},
volume = {120},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://doi.org/10.1021/acs.jpcc.6b10417},
number = {50},
pages = {28857--28866},
doi = {10.1021/acs.jpcc.6b10417}
}
Cite this
MLA
Copy
Yermakov, A.Ye., et al. “Surface magnetism of cobalt-doped anatase TiO2 nanopowders.” Journal of Physical Chemistry C, vol. 120, no. 50, Dec. 2016, pp. 28857-28866. https://doi.org/10.1021/acs.jpcc.6b10417.