Photoinduced Oxidation of a Surface of CaV0.5Mo0.5O3 − δ

CaV 0.5 Mo 0.5 O 3 − δ with the structure of perovskite is synthesized in an atmosphere of humid hydrogen. It is found that when the material under study is moved into air, a nonequilibrium state forms due to the enhanced concentration of oxygen over the surface of the highly reduced oxide. It is sh...

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Published in:Russian Journal of Physical Chemistry A 2018, Vol.92 (1), p.195-199
Main Authors: Belyakov, S. A., Shkerin, S. N., Kuznetsov, M. V., Vovkotrub, E. G.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Laser beams
Lasers
Oxidation
Photochemistry and Magnetochemistry
Physical Chemistry
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description CaV 0.5 Mo 0.5 O 3 − δ with the structure of perovskite is synthesized in an atmosphere of humid hydrogen. It is found that when the material under study is moved into air, a nonequilibrium state forms due to the enhanced concentration of oxygen over the surface of the highly reduced oxide. It is shown that photoinitiated oxidation is observed on the surface of the material under the action of a low-power laser beam (50 mW), where it selectively occurs under a green laser beam (λ = 532 nm). This phenomenon is observed for such materials for the first time.
doi_str_mv 10.1134/S0036024418010053
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subjects Chemistry
Chemistry and Materials Science
Laser beams
Lasers
Oxidation
Photochemistry and Magnetochemistry
Physical Chemistry
title Photoinduced Oxidation of a Surface of CaV0.5Mo0.5O3 − δ
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