Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Oleksandr Shtyka"'
Autor:
Artem Kaporov, Oleksandr Shtyka, Radoslaw Ciesielski, Adam Kedziora, Waldemar Maniukiewicz, Malgorzata Szynkowska-Jozwik, Yelubay Madeniyet, Tomasz Maniecki
Publikováno v:
Materials, Vol 16, Iss 8, p 3180 (2023)
The investigation of the course of the Boudouard reaction and methane cracking was performed over nickel catalysts based on oxides of calcium, aluminum, and magnesium. The catalytic samples were synthesized by the impregnation method. The physicochem
Externí odkaz:
https://doaj.org/article/a7b30254de0043659a0427d361563089
Autor:
Mateusz Zakrzewski, Oleksandr Shtyka, Jacek Rogowski, Radoslaw Ciesielski, Adam Kedziora, Tomasz Maniecki
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 2, p 975 (2023)
This work investigated the influence of the catalytic support precursor on the activity of nickel catalysts 20%Ni/5%La2O3–95%Al2O3 in the mixed methane reforming process. The activity tests were carried out at a temperature of 750 °C. The research
Externí odkaz:
https://doaj.org/article/7edbf1dcb6c1459eb70c43f9fded2164
Autor:
Pawel Mierczynski, Oleksandr Shtyka, Marcin Kozanecki, Paulina Filipczak, Waldemar Maniukiewicz, Dmitry G. Gromov, Sergey V. Dubkov, Artem V. Sysa, Alexey Yu. Trifonov, Agnieszka Czylkowska, Malgorzata I. Szynkowska, Tomasz P. Maniecki
Publikováno v:
Arabian Journal of Chemistry, Vol 13, Iss 1, Pp 835-850 (2020)
The synthesis of multi-walled carbon nanotubes (MWCNTS) has been the focus of considerable research effort for more than twenty-five years and it continues to receive increasing attention because of its importance to produce carbon nanotubes with sui
Externí odkaz:
https://doaj.org/article/e48ad25430ea492499b805e27c4b827a
Autor:
Radosław Ciesielski, Mateusz Zakrzewski, Oleksandr Shtyka, Tomasz Maniecki, Adam Rylski, Marek Wozniak, Przemyslaw Kubiak, Krzysztof Siczek
Publikováno v:
Energies, Vol 15, Iss 11, p 4083 (2022)
The effect of three kinds of fuels used to supply a diesel engine on its characteristics, fuel consumption, and emissions was studied. The fuels comprised pure diesel, a blend of diesel with 6% of methyl ester of yellow grease in the form of rapeseed
Externí odkaz:
https://doaj.org/article/c05fa56e06f848549a19e77d08eda17e
Autor:
Mateusz Zakrzewski, Oleksandr Shtyka, Radoslaw Ciesielski, Adam Kedziora, Waldemar Maniukiewicz, Natalia Arcab, Tomasz Maniecki
Publikováno v:
Materials, Vol 14, Iss 24, p 7581 (2021)
This work investigates the effect of the addition of Ru and CeO2 on the process of gasification of carbon deposits formed on the surface of a nickel catalyst during the mixed methane reforming process. Activity studies of the mixed methane reforming
Externí odkaz:
https://doaj.org/article/392b448188e242e59d2ff3bd3340afa7
Autor:
Oleksandr Shtyka, Waldemar Maniukiewicz, Radoslaw Ciesielski, Adam Kedziora, Viktar Shatsila, Tomasz Sierański, Tomasz Maniecki
Publikováno v:
Materials, Vol 14, Iss 12, p 3218 (2021)
In the present work, for the first time, the possibility of formation of CrAl2O4 was shown from the equimolar mixture of co-precipitated Al2O3 and Cr2O3 oxides under a reductive environment. The crystallographic properties of the formed compound were
Externí odkaz:
https://doaj.org/article/0b16dc8e7e534732a6abb6f6a99cc42f
Autor:
Oleksandr Shtyka, Viktar Shatsila, Radoslaw Ciesielski, Adam Kedziora, Waldemar Maniukiewicz, Sergey Dubkov, Dmitry Gromov, Andrey Tarasov, Jacek Rogowski, Andrey Stadnichenko, Petr Lazarenko, Roman Ryazanov, Malgorzata I. Szynkowska-Jóźwik, Tomasz Maniecki
Publikováno v:
Catalysts, Vol 11, Iss 1, p 47 (2020)
The photocatalytic activity of TiO2 depends on numerous factors, such as the chemical potential of electrons, charge transport properties, band-gap energy, and concentration of surface-active sites. A lot of research has been dedicated to determining
Externí odkaz:
https://doaj.org/article/df058ea9a4c746128c28a36ca13af24c
Autor:
Artem Kaporov, Oleksandr Shtyka, Radoslaw Ciesielski, Adam Kedziora, Waldemar Maniukiewicz, Malgorzata Szynkowska-Jozwik, Yelubay Madeniyet, Tomasz Maniecki
The investigation of the Boudouard reaction and methane cracking was performed over Ni/CaO, Ni/Al2O3, and Ni/MgO. The catalysts were synthesized using co-precipitation. Both catalysts and carbon deposits were studied using AAS, BET, TPD, TPR, TPO, TO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cc428c27bab666fa4678253b3055fc5
https://doi.org/10.22541/au.167720589.96247916/v1
https://doi.org/10.22541/au.167720589.96247916/v1
Autor:
Oleksandr Shtyka, A. Kaporov, Waldemar Maniukiewicz, R. Ciesielski, A. Kedziora, Hanna Kierzkowska-Pawlak, J. Tyczkowski, J. Balcerzak, T. Maniecki
Publikováno v:
SSRN Electronic Journal.
Autor:
Larisa Sorokina, Andrey Savitskiy, Oleksandr Shtyka, Tomasz Maniecki, Malgorzata Szynkowska-Jozwik, Alexey Trifonov, Elena Pershina, Ivan Mikhaylov, Sergey Dubkov, Dmitry Gromov
Publikováno v:
Journal of Alloys and Compounds. 904:164012