Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Magdalena Greluk"'
Publikováno v:
Molecules, Vol 29, Iss 16, p 3963 (2024)
Fe-modified Cu catalysts with CeO2 support, prepared by the impregnation method, were subjected to physicochemical analysis and catalytic tests in the steam reforming of methanol (SRM). Physicochemical studies of the catalysts were carried out using
Externí odkaz:
https://doaj.org/article/1acdae2b74ea494e80ed90628a662b28
Autor:
Magdalena Greluk, Marek Rotko, Grzegorz Słowik, Sylwia Turczyniak-Surdacka, Gabriela Grzybek, Katarzyna Tyszczuk-Rotko
Publikováno v:
Materials, Vol 16, Iss 15, p 5377 (2023)
The promotional effect of potassium (~1.25 wt%) on a Co/MnOx catalyst was studied for samples prepared by the impregnation method in the steam reforming of ethanol (SRE) process at 420 °C for a H2O/EtOH molar ratio of 12/1. The catalysts were charac
Externí odkaz:
https://doaj.org/article/5822a1b7f003463fb20536f823d49e56
Autor:
Magdalena Greluk, Marek Rotko, Grzegorz Słowik, Sylwia Turczyniak-Surdacka, Gabriela Grzybek, Kinga Góra-Marek, Andrzej Kotarba
Publikováno v:
Catalysts, Vol 12, Iss 6, p 600 (2022)
The effect of a potassium promoter on the stability of and resistance to a carbon deposit formation on the Ni/MnOx catalyst under SRE conditions was studied at 420 °C for different H2O/EtOH molar ratios in the range from 4/1 to 12/1. The catalysts w
Externí odkaz:
https://doaj.org/article/53018003e4ce4815916cef624d14abc1
Autor:
Gabriela Grzybek, Magdalena Greluk, Karolina Tarach, Kamila Pyra, Grzegorz Słowik, Marek Rotko, Kinga Góra-Marek
Publikováno v:
Frontiers in Materials, Vol 7 (2020)
The ethanol steam reforming (ESR) process over cobalt-based zeolitic catalysts, differing significantly in the structure, was comprehensively examined. The cobalt spinel phase (10 wt%) was deposited on the surface of USY and ZSM-5 zeolites (Si/Al rat
Externí odkaz:
https://doaj.org/article/5f831ef4a3ff4ee2a4cf3d12daeee29e
Autor:
Wojciech Gac, Witold Zawadzki, Magdalena Greluk, Grzegorz Słowik, Marek Rotko, Marcin Kuśmierz
Publikováno v:
Catalysts, Vol 12, Iss 1, p 13 (2021)
The influence of Ce and W promoters on the performance of alumina-supported nickel catalysts in the CO2 methanation reaction was investigated. The catalysts were obtained by the co-impregnation method. Nitrogen low-temperature adsorption, temperature
Externí odkaz:
https://doaj.org/article/4d62e45f439d43fd9537e52b782cdbd1
Autor:
Grzegorz Słowik, Magdalena Greluk
Publikováno v:
Catalysis Letters. 153:1505-1526
Autor:
Gabriela Grzybek, Kinga Góra-Marek, Karolina Tarach, Kamila Pyra, Piotr Patulski, Magdalena Greluk, Grzegorz Słowik, Marek Rotko, Andrzej Kotarba
Publikováno v:
Journal of Catalysis. 407:364-380
Autor:
Gabriela Grzybek, Magdalena Greluk, Piotr Patulski, Paweł Stelmachowski, Karolina Tarach, Grzegorz Słowik, Marek Rotko, Susana Valencia, Fernando Rey, Kinga Góra-Marek
Publikováno v:
Chemical Engineering Journal. 467:143239
Publikováno v:
Journal of Catalysis. 393:159-178
The Co/CeO2 and Ni/CeO2 catalysts were obtained by impregnation method with using different active phase precursors, different impregnation solvents and in presence of organic additive in order to improve cobalt/nickel dispersion and metal-support in
Autor:
Piotr Legutko, Gabriela Grzybek, Marek Rotko, Kinga Góra-Marek, Grzegorz Słowik, Paulina Indyka, Sylwia Turczyniak-Surdacka, Andrzej Kotarba, Magdalena Greluk, Zbigniew Sojka
Publikováno v:
International Journal of Hydrogen Energy. 45:22658-22673
The promotional effect of potassium doping on the ESR performance of the CoZn|α-Al2O3 catalyst was thoroughly investigated in the context of its impact on the selectivity and stability of the catalyst, and discussed in terms of cobalt dispersion, ox