Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Monika Motak"'
Publikováno v:
Catalysts, Vol 14, Iss 1, p 11 (2023)
In the presented work, the catalytic performance of a nickel catalyst, in CO2 hydrogenation to methane, within a ZrO2 open-cell foam (OCF)-based catalyst was studied. Two series of analogous samples were prepared and coated with 100–150 mg of a Mg-
Externí odkaz:
https://doaj.org/article/63e04184451a45f384a686f4229c6890
Publikováno v:
Molecules, Vol 28, Iss 13, p 4960 (2023)
Two series of MCM-36 zeolites intercalated with various pillars and modified with iron were synthesized, analyzed with respect to their physicochemical properties, and tested as catalysts for the NH3-SCR process. It was found that the characteristic
Externí odkaz:
https://doaj.org/article/68707e6f6cb04ce38ec6dda608dc3cbe
Publikováno v:
Materials, Vol 15, Iss 22, p 7884 (2022)
A series of clinoptilolite-supported catalysts, modified with hydrotalcite-like phase (HT) by co-precipitation, were prepared and tested in NH3-SCR reactions. It was found that deposition of HT on clinoptilolite increased conversion of NO within 250
Externí odkaz:
https://doaj.org/article/b72b2c0fc4df4e30bcc1f15962be9aaf
Autor:
Agnieszka Szymaszek-Wawryca, Urbano Díaz, Dorota Duraczyńska, Konrad Świerczek, Bogdan Samojeden, Monika Motak
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 18, p 10754 (2022)
The catalytic performance of Fe-catalysts in selective catalytic reduction of nitrogen oxides with ammonia (NH3-SCR) strongly depends on the nature of iron sites. Therefore, we aimed to prepare and investigate the catalytic potential of Fe-MCM-22 wit
Externí odkaz:
https://doaj.org/article/c5a12d44b8ec419ca678b6c13ff452d8
Autor:
Magdalena Saramok, Marek Inger, Katarzyna Antoniak-Jurak, Agnieszka Szymaszek-Wawryca, Bogdan Samojeden, Monika Motak
Publikováno v:
Catalysts, Vol 12, Iss 7, p 731 (2022)
In modern dual-pressure nitric acid plants, the tail gas temperature usually exceeds 300 °C. The NH3-SCR catalyst used in this temperature range must be resistant to thermal deactivation, so commercial vanadium-based systems, such as V2O5-WO3 (MoO3)
Externí odkaz:
https://doaj.org/article/dece296bd1fa4dd6a04bc93cc344a0e4
Publikováno v:
Molecules, Vol 27, Iss 9, p 2983 (2022)
The application of layered zeolites of MWW topology in environmental catalysis has attracted growing attention in recent years; however, only a few studies have explored their performance in selective catalytic reduction with ammonia (NH3-SCR). Thus,
Externí odkaz:
https://doaj.org/article/54754f6506014f34bbf0222e9c58a02c
Autor:
Paulina Summa, Katarzyna Świrk, Dominik Wierzbicki, Monika Motak, Ivo Alxneit, Magnus Rønning, Patrick Da Costa
Publikováno v:
Molecules, Vol 26, Iss 21, p 6506 (2021)
Co-precipitated Ni-Mg-Al hydrotalcite-derived catalyst promoted with vanadium were synthesized with different V loadings (0–4 wt%) and studied in CO2 methanation. The promotion with V significantly changes textural properties (specific surface area
Externí odkaz:
https://doaj.org/article/c41a267a37544a4f948e86abed9a6925
Autor:
Magdalena Saramok, Agnieszka Szymaszek, Marek Inger, Katarzyna Antoniak-Jurak, Bogdan Samojeden, Monika Motak
Publikováno v:
Catalysts, Vol 11, Iss 4, p 450 (2021)
Natural zeolite of the heulandite-type framework was modified with iron and tested as a catalyst for the selective catalytic reduction of nitrogen oxides with ammonia (NH3-SCR) in the temperature range of 150–450 °C. The catalyst was prepared at a
Externí odkaz:
https://doaj.org/article/62766f2235404083acbe182319c4cb11
Publikováno v:
Catalysts, Vol 10, Iss 12, p 1423 (2020)
The goal of the study was to modify activated carbon (AC) with nitrogen groups and ceria and to test the obtained materials in low temperature selective catalytic reduction of nitrogen oxides. For that purpose, the starting AC was oxidized with HNO3
Externí odkaz:
https://doaj.org/article/3b500ccfd7f54e8f8c4b60b9dc8651e4
Publikováno v:
Catalysts, Vol 10, Iss 12, p 1426 (2020)
A series of materials based on activated carbon (AC) with copper deposited in various amounts were prepared using an incipient wetness impregnation method and tested as catalysts for selective catalytic reduction of nitrogen oxides with ammonia. The
Externí odkaz:
https://doaj.org/article/8e2902169d4b4c10b27e3cc45cee6a0e