Registration Number
0220U104632,
0120U103665
, R & D reports
Title
Oxide nanobelts formation under stirring – experiment, theory, applications
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Head
Gusak Andriy M., д.ф.-м.н.
Registration Date
24-12-2020
Organization
Bohdan Khmelnytsky National University of Cherkasy
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The object of research is anisotropic nanostructures of oxides.
The subject of research is the conditions and kinetics of formation of nanofiber structures of metal oxides.
Objective: Experimental implementation, theory and mathematical modeling of a new method for the production of nanobelts of oxides by intensive stirring of aqueous solutions.
Main results:
1. For the first time in Ukraine, nanobands of vanadium pentoxide were obtained by intensive stirring of the source powder V2O5 with salted water (for this purpose, our own automated device was designed and a corresponding technique of nanobelts production was developed).
2. The designed device provides the ability to quickly change the working capacity, the intensity of the hydraulic resistance of the rotor blades and the ability to change the gear ratio between the engine and the rotating elements of the rotor. Smooth adjustment and stabilization of the rotational speed is provided.
3. The obtained nanobelts were examined using the scanning electron microscope at the Cherkasy National University, as well as at SEM and TEM at the M.G. Kholodny Institute of Botany (NASU). Some of the obtained nanomaterials were transferred to the Polish side of the project and studied at the nano-center of the University of Science and Technology (AGH) in Krakow.
4. For the first time in the world it became possible to explain and describe the process of formation of elongated nanostructures in the framework of a new phenomenological theory of recrystallization taking into account additional anisotropic ballistic (non-thermal) erosion frequencies for different faces during intensive stirring. The results were published in two international (quartile 1 and 2) journals.
5. There are two possible causes of anisotropic growth of elongated particles: (1) large anisotropy of kinetic factors of growth / dissolution in different directions (2) anisotropy (even moderate) of ballistic fequencies.
Product Description
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Huriev Yaroslav I
Gusak Andriy M
Kolomiets Denys I
Korol Yaroslav D
Pasichnyy Mykola O
Storozhuk Nadiya V
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2020-12-24
