Zobrazeno 1 - 10
of 24
pro vyhledávání: '"O. Z. Didenko"'
Autor:
N. V. Vlasenko, G. R. Kosmambetova, Tetiana Dontsova, O. Z. Didenko, Olena Yanushevska, V. I. Grytsenko
Publikováno v:
Theoretical and Experimental Chemistry. 57:77-83
According to the results of the study of activated red mud (ARM) and its copper-containing compositions, there is a relationship between the heat treatment conditions of compositions, the size of nanoparticles of the components, and catalytic activit
Autor:
N. V. Vlasenko, Andrei Ivanets, Evhen V. Leonenko, Olena Yanushevska, German M. Telbis, V. G. Prozorovich, O. Z. Didenko, Tetiana Dontsova
Publikováno v:
Applied Nanoscience. 12:691-700
The acid–base properties and photocatalytic activity for the degradation of Congo Red and methylene blue of TiO2-based nanomaterials (commercial TiO2, sulfonated TiO2 (TiO2-S) and nanocomposites TiO2 and TiO2-S with carbon nanotubes) have been stud
Autor:
Viktoria Konovalova, Peter E. Strizhak, Nikolai Gomelya, O. Z. Didenko, Olena Ivanenko, Andrii Vahin, A. I. Trypolskyi, Anton Karvatskii
Publikováno v:
Journal of Ecological Engineering, Vol 22, Iss 1, Pp 174-187 (2021)
The catalysts based on natural zeolite-clinoptilolite of Sokyrnytsia deposit modified with oxides of Mn4+, Fe2+, Fe3+, Cu2+, Cr3+ were synthesized. It was determined that 100% conversion of carbon monoxide was achieved at a temperature of 390ºC wnen
Autor:
Olena Yanushevska, A. S. Nypadymka, N. V. Vlasenko, O. Z. Didenko, Tetiana Dontsova, A. I. Aleksyk
Publikováno v:
Clays and Clay Minerals. 68:465-475
Because they are so widespread, the use of saponites is significant in many industries. The modification of saponite-rich clay minerals is known to improve their existing characteristics and may provide new functional properties. The objective of the
Publikováno v:
Здобутки клінічної і експериментальної медицини. :101-106
Однією з провідних причин розвитку ішемічного інсульту у пацієнтів з артеріальною гіпертензією (АГ), що поступається лише атеросклероз
Acid–Base and Catalytic Properties of Sulfated Mesoporous Titanium Oxide in Glycerol Oligomerization
Publikováno v:
Theoretical and Experimental Chemistry. 56:199-204
The structural and spectral characteristics of sulfated spherical mesoporous titanium dioxide (TiO2-S), obtained by hydrothermal sol–gel synthesis in the presence of sulfuric acid, are studied by XRD, SEM, BET, and IR spectroscopy. The acid–base
Autor:
Peter E. Strizhak, S.A. Nedilko, Tetiana Voitenko, Dina D. Naumova, O. Z. Didenko, I.V. Fesych, G. R. Kosmambetova
Publikováno v:
Theoretical and Experimental Chemistry. 56:130-135
The effect of neodymium addition in the composition of complex bismuth cuprates Bi2Sr2–xNdxCaCu2Oy (0 ≤ x ≤ 0.1) on their structural and electrophysical characteristics and catalytic properties is found. It is established that increase in the n
Publikováno v:
Theoretical and Experimental Chemistry. 55:246-249
The fractal dimensions of nanodispersed zirconia determined by the BET and SAXS methods are compared. The fractal dimensions were shown to depend on the characteristic dimensions of the surface areas determined by different methods. A method for calc
Autor:
I. B. Bychko, Ye. Yu. Kalishyn, Peter E. Strizhak, A. I. Trypolskyi, O. Z. Didenko, Z. V. Kaidanovych
Publikováno v:
Theoretical and Experimental Chemistry. 54:358-363
It was shown that a catalyst obtained by depositing palladium nanoparticles from a colloidal solution onto a carbon support stabilized with polyvinylpyrrolidone exhibits higher activity in liquid-phase hydrogenation of o-nitrotoluene than a commercia
Publikováno v:
The Canadian Journal of Chemical Engineering. 95:1510-1517
Magnesia-supported highly-dispersed CuO solids were prepared by impregnation and mechanical mixing of CuO nanopowders with MgO. Additionally, ultrasound and mechanochemical treatment of CuO nanopowders mixed with MgO was performed. TEM and XRD studie