Search Results - "Marek, Kinga"

2,6-Di-tert-butylpyridine Sorption Approach to Quantify the External Acidity in Hierarchical Zeolites by Góra-Marek, Kinga, Tarach, Karolina, Choi, Minkee

“…This work was aimed to evidence that substituted pyridine, 2,6-di-tert-butylpyridine, is a suitable probe for the quantitative investigation of the external…”
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Oxygen Splitting and Methane Oxidation over Fe-Mordenite: Insight by the Operando 2D COS UV–Vis–NIR–IR Approach by Tarach, Karolina, Sobalska, Julia, Held, Agnieszka, Dedecek, Jiri, Tabor, Edyta, Góra-Marek, Kinga

“…Activation of molecular oxygen and subsequent oxidation of methane over Fe sites in mordenite zeolites with different content of framework Al atoms were…”
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Analysis of NH3‐TPD Profiles for CuSSZ‐13 SCR Catalyst of Controlled Al Distribution – Complexity Resolved by First Principles Thermodynamics of NH3 Desorption, IR and EPR Insight into Cu Speciation by Mozgawa, Bartosz, Zasada, Filip, Fedyna, Monika, Góra‐Marek, Kinga, Tabor, Edyta, Mlekodaj, Kinga, Dědeček, Jiří, Zhao, Zhen, Pietrzyk, Piotr, Sojka, Zbigniew

“…NH3 temperature‐programmed desorption (NH3‐TPD) is frequently used for probing the nature of the active sites in CuSSZ‐13 zeolite for selective catalytic…”
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Effect of zeolite topology on NH3-SCR activity and stability of Cu-exchanged zeolites by Tarach, Karolina A., Jabłońska, Magdalena, Pyra, Kamila, Liebau, Michael, Reiprich, Bastian, Gläser, Roger, Góra-Marek, Kinga

“…[Display omitted] •Topology effects the redox-cycle of Cu2+↔Cu+ and thus the activity in NH3-SCR.•First spectroscopic evidence for the generation of…”
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High-Silica Layer-like Zeolites Y from Seeding-Free Synthesis and Their Catalytic Performance in Low-Density Polyethylene Cracking by Reiprich, Bastian, Tarach, Karolina A, Pyra, Kamila, Grzybek, Gabriela, Góra-Marek, Kinga

“…Layer-like FAU-type zeolite Y was synthesized by an organosilane-assisted low-temperature hydrothermal method and its catalytic activity was verified in the…”
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Molecular Understanding of the Catalytic Consequence of Ketene Intermediates under Confinement by Chen, Wei, Li, Guangchao, Yi, Xianfeng, Day, Sarah J, Tarach, Karolina A, Liu, Zhiqiang, Liu, Shang-Bin, Edman Tsang, Shik Chi, Góra-Marek, Kinga, Zheng, Anmin

“…Neutral ketene is a crucial intermediate during zeolite carbonylation reactions. In this work, the roles of ketene and its derivates (viz., acylium ion and…”
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Accessibility of Acid Sites in Hierarchical Zeolites: Quantitative IR Studies of Pivalonitrile Adsorption by Sadowska, Karolina, Góra-Marek, Kinga, Datka, Jerzy

“…Accessibility studies of acid sites in zeolites involving quantitative IR measurements with hindered pivalonitrile as probe molecule were performed. The…”
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Constrained and Open Mesoporosity in Polypropylene Cracking: Insight From Spectroscopic Investigations of Acidity, Diffusion, and Activity by Tarach, Karolina A., Jajko, Gabriela, Palomino, Miguel, Rey, Fernando, Góra-Marek, Kinga

“…The outcome of the demetalation process of zeolites depends on applied treatment conditions and can lead to the formation of either open or constrained…”
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Towards a greater olefin share in polypropylene cracking – Amorphous mesoporous aluminosilicate competes with zeolites by Pyra, Kamila, Tarach, Karolina A., Góra-Marek, Kinga

“…[Display omitted] •The highest olefinicity products found for the HAlMCM-48.•The HAlMCM-48 as a successful additives of the FCC catalyst.•Low coke formation in…”
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Effect of Missing-Linker Defects and Ion Exchange on Stability and Proton Conduction of a Sulfonated Layered Zr-MOF by Szufla, Monika, Navarro, Jorge A. R., Góra-Marek, Kinga, Matoga, Dariusz

“…Intentionally introduced defects into solid materials create opportunities to control and tune their diverse physicochemical properties. Despite the growing…”
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Operando Study Reveals the Superior Cracking Activity and Stability of Hierarchical ZSM‐5 Catalyst for the Cracking of Low‐Density Polyethylene by Tarach, Karolina A., Pyra, Kamila, Siles, Sandra, Melián‐Cabrera, Ignacio, Góra‐Marek, Kinga

“…A new theoretical and practical framework has been developed through operando study of the zeolite catalytic cracking of low‐density polyethylene (as a model…”
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Hydrothermal stability and catalytic performance of desilicated highly siliceous zeolites ZSM-5 by Tarach, Karolina A., Martinez-Triguero, Joaquin, Rey, Fernando, Góra-Marek, Kinga

“…[Display omitted] •Desilicated high silica zeolites presented good hydrothermal stability.•Preservation of mesoporosity after the steaming treatment.•Mesopores…”
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Pd-modified beta zeolite for modulated hydro-cracking of low-density polyethylene into a paraffinic-rich hydrocarbon fuel by Pyra, Kamila, Tarach, Karolina A., Śrębowata, Anna, Melián-Cabrera, Ignacio, Góra-Marek, Kinga

“…[Display omitted] •Pd-modified beta zeolite of the similar texture, structure and acidity as H-zeolite.•Saturated hydrocarbons produced using only…”
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Hierarchical zeolites TNU-9 and IM-5 as the catalysts for cracking processes by Tarach, Karolina A., Martinez-Triguero, Joaquin, Valencia, Susana, Wojciechowska, Kamila, Rey, Fernando, Góra-Marek, Kinga

“…The 10-ring zeolites TNU-9 and IM-5 were obtained by a desilication and evaluated in series of acid-catalysed cracking reactions. n-Decane and…”
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Charge-separation driven mechanism via acylium ion intermediate migration during catalytic carbonylation in mordenite zeolite by Chen, Wei, Tarach, Karolina A., Yi, Xianfeng, Liu, Zhiqiang, Tang, Xiaomin, Góra-Marek, Kinga, Zheng, Anmin

“…By employing ab initio molecular dynamic simulations, solid-state NMR spectroscopy, and two-dimensional correlation analysis of rapid scan Fourier transform…”
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IR studies of Fe modified ZSM-5 zeolites of diverse mesopore topologies in the terms of their catalytic performance in NH3-SCR and NH3-SCO processes by Góra-Marek, Kinga, Brylewska, Kamila, Tarach, Karolina A., Rutkowska, Małgorzata, Jabłońska, Magdalena, Choi, Minkee, Chmielarz, Lucjan

“…[Display omitted] •Conventional microporous zeolite vs. hierarchical analogs.•Superior activity of mesostructured Fe-ZSM-5 in the NH3-SCR and NH3-SCO…”
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Influence of Framework n(Si)/n(Al) Ratio on the Nature of Cu Species in Cu‐ZSM‐5 for NH3‐SCR‐DeNOx by Jabłońska, Magdalena, Góra‐Marek, Kinga, Bruzzese, Paolo Cleto, Palčić, Ana, Pyra, Kamila, Tarach, Karolina, Bertmer, Marko, Poppitz, David, Pöppl, Andreas, Gläser, Roger

“…Nanosized Cu‐containing ZSM‐5 catalysts with different n(Si)/n(Al) ratio of 18.9–50.5 were prepared by ion‐exchange. The physico‐chemical characterization…”
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Mechanistic stages of the SCR reaction – Insights into the trade-off between NO reduction and NH3 oxidation over CuSSZ-13 catalysts via isotopic 15NH3 and 18O2 TPSR and steady state studies supported by IR 2D COS and DFT modeling by Fedyna, Monika, Mozgawa, Bartosz, Zasada, Filip, Góra-Marek, Kinga, Gryboś, Joanna, Piskorz, Witold, Yin, Chengyang, Zhao, Zhen, Pietrzyk, Piotr, Sojka, Zbigniew

“…Isotopic labeling investigations into SCR reaction were performed over CuSSZ-13 zeolites, obtained by one-pot synthesis or impregnation, and characterized by…”
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Adjustment of the ZSM-5 zeolite support towards the efficient hydrogen production by ethanol steam reforming on cobalt catalysts by Grzybek, Gabriela, Greluk, Magdalena, Patulski, Piotr, Stelmachowski, Paweł, Tarach, Karolina, Słowik, Grzegorz, Rotko, Marek, Valencia, Susana, Rey, Fernando, Góra-Marek, Kinga

“…[Display omitted] •The effect of Al content on the activity of Co|zeolite catalyst in the ethanol steam reforming process.•The key role of the zeolite…”
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Vanadium-doped dendritic mesoporous silica for selective propane oxidation to valuable intermediates by Held, Agnieszka, Kowalska-Kuś, Jolanta, Parafińska, Kinga, Tarach, Karolina A., Sobańska, Kamila, Góra-Marek, Kinga

“…The catalytic performance of a series of dendritic mesoporous silica nanoparticles (DMSNs) containing vanadium, featuring a unique central-radial pore…”
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