Search Results - "Góra, Marek"

Journal Article

Hydrothermal stability and catalytic performance of desilicated highly siliceous zeolites ZSM-5

by Tarach, Karolina A Martinez-Triguero, Joaquin Rey, Fernando Góra-Marek, Kinga Published in Journal of catalysis (01.07.2016)

“...[Display omitted] •Desilicated high silica zeolites presented good hydrothermal stability.•Preservation of mesoporosity after the steaming treatment.•Mesopores...”

Journal Article

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 Published in ChemSusChem (07.02.2019)

“...A new theoretical and practical framework has been developed through operando study of the zeolite catalytic cracking of low‐density polyethylene (as a model...”

Journal Article

Hierarchic zeolites studied by IR spectroscopy: Acid properties of zeolite ZSM-5 desilicated with NaOH and NaOH/tetrabutylamine hydroxide

by Sadowska, Karolina Góra-Marek, Kinga Datka, Jerzy Published in Vibrational spectroscopy (01.11.2012)

“...Acid properties of zeolites ZSM-5 desilicated in pure NaOH and in mixtures of NaOH/tetrabutylamine hydroxide (TBAOH) of various concentrations of basic...”

Journal Article

Influence of ZrO2 Structure and Copper Electronic State on Activity of Cu/ZrO2 Catalysts in Methanol Synthesis from CO2

by Samson, K Śliwa, M Socha, R. P Góra-Marek, K Mucha, D Rutkowska-Zbik, D Paul, J-F Ruggiero-Mikołajczyk, M Grabowski, R Słoczyński, J Published in ACS catalysis (03.10.2014)

“...Cu/ZrO2 catalysts obtained by impregnation of ZrO2 and complexation with citric acid were studied for CO2 hydrogenation to methanol. The catalyst structure,...”

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Journal Article

2D COS analysis of m-xylene transformation over medium-pore zeolites

by Gołąbek, Kinga Tarach, Karolina A Góra-Marek, Kinga Published in Microporous and mesoporous materials (01.08.2018)

“...m-Xylene isomerisation, as well as secondary disproportionation reactions, were examined over the 10-ring zeolites with different pore topology. As recognised...”

Journal Article

Desilication of highly siliceous zeolite ZSM-5 with NaOH and NaOH/tetrabutylamine hydroxide

by Sadowska, K Góra-Marek, K Drozdek, M Kuśtrowski, P Datka, J Martinez Triguero, J Rey, F Published in Microporous and mesoporous materials (01.03.2013)

“...The three types of OH groups in desilicated ZSM-5 –evidence for reamulmination. [Display omitted] ► In ZSM-5 (Si/Al=164) Si removal is more effective in...”

Journal Article

Zeolite Y modified with palladium as effective catalyst for selective catalytic oxidation of ammonia to nitrogen

by Jabłońska, Magdalena Król, Anna Kukulska-Zajac, Ewa Tarach, Karolina Chmielarz, Lucjan Góra-Marek, Kinga Published in Journal of catalysis (01.07.2014)

“...[Display omitted] •Catalyst Pd/HY (1.5%) was found to be active and selective in the NH3-SCO process.•NH3-SCO process over Pd-zeolites proceeds according to...”

Journal Article

Porosity and accessibility of acid sites in desilicated ZSM-5 zeolites studied using adsorption of probe molecules

by Mlekodaj, Kinga Tarach, Karolina Datka, Jerzy Góra-Marek, Kinga Makowski, Wacław Published in Microporous and mesoporous materials (01.01.2014)

“...•Microporosity of ZSM-5 is not affected by desilication with NaOH or TBAOH/NAOH.•Desilication with TBAOH/NAOH mixture gives more uniform intraparticle...”

Journal Article

Modification of silicalite-1 with ammonium compounds aimed at preparation of acidic catalyst for acetalization of glycerol with acetone

by Janiszewska, E Kowalska-Kuś, J Góra-Marek, K Szymocha, A Nowińska, K Kowalak, S Published in Applied catalysis. A, General (05.07.2019)

“...[Display omitted] •Silicalite-1 were modified by post-synthesis treatment with different ammonium compounds without any additional alkaline agent.•New acidic...”

Journal Article

Nickel loaded zeolites FAU and MFI: Characterization and activity in water-phase hydrodehalogenation of TCE

by Tarach, Karolina A Śrębowata, Anna Kowalewski, Emil Gołąbek, Kinga Kostuch, Aldona Kruczała, Krzysztof Girman, Vladimir Góra-Marek, Kinga Published in Applied catalysis. A, General (25.11.2018)

“...[Display omitted] •Simultaneous participation of nickel and acidic active sites in TCE HDC reaction.•1,1-DCE and 1,2-DCE as intermediate products.•Acid sites...”

Journal Article

Quantitative IR studies of the concentration of different nickel sites in NiZSM-5 zeolites

by Góra-Marek, Kinga Glanowska, Anna Datka, Jerzy Published in Microporous and mesoporous materials (01.08.2012)

“...[Display omitted] ► Elaboration of the experimental procedure of IR quantitative studies of Ni sites. ► Determination of the absorption coefficient of...”

Journal Article

Mesoporous silica materials modified with alumina polycations as catalysts for the synthesis of dimethyl ether from methanol

by Macina, Daniel Piwowarska, Zofia Tarach, Karolina Góra-Marek, Kinga Ryczkowski, Janusz Chmielarz, Lucjan Published in Materials research bulletin (01.02.2016)

“...[Display omitted] •Deposition of alumina ologoctaions on mesoporous silicas modified with surface SO3H groups.•Alumina aggregates generated acid properties in...”

Journal Article

Xylenes transformation over zeolites ZSM-5 ruled by acidic properties

by Gołąbek, Kinga Tarach, Karolina A Góra-Marek, Kinga Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (05.03.2018)

“...The studies presented in this work offer an insight into xylene isomerization process, followed by 2D COS analysis, in the terms of different acidity of...”

Journal Article

Alkaline-acid treated zeolite L as catalyst in ethanol dehydration process

by Tarach, Karolina A Tekla, Justyna Filek, Urszula Szymocha, Agnieszka Tarach, Iwona Góra-Marek, Kinga Published in Microporous and mesoporous materials (15.03.2017)

“...In the present study, the catalytic dehydration of ethanol to obtain ethylene over efficiently top-down modified zeolites L was investigated at temperature...”

Journal Article

Effective hierarchization of TS-1 and its catalytic performance in cyclohexene epoxidation

by Tekla, Justyna Tarach, Karolina A Olejniczak, Zbigniew Girman, Vladimir Góra-Marek, Kinga Published in Microporous and mesoporous materials (01.10.2016)

“...The presented data showed that the chemical treatment of TS-1 with alkaline medium resulted in the formation of highly developed hierarchical structures. The...”

Journal Article

Quantitative infrared spectroscopic studies and 2D COS analysis of xylenes isomerization over hierarchical zeolites

by Tarach, Karolina A Gołąbek, Kinga Choi, Minkee Góra-Marek, Kinga Published in Catalysis today (01.04.2017)

“...[Display omitted] •Microporous character of zeolites crucial for high selectivity to p-xylene.•Mesitylene and toluene occurred during ortho-xylene...”

Journal Article

Zeolites Y modified with palladium as effective catalysts for low-temperature methanol incineration

by Jabłońska, Magdalena Król, Anna Kukulska-Zając, Ewa Tarach, Karolina Girman, Vladimir Chmielarz, Lucjan Góra-Marek, Kinga Published in Applied catalysis. B, Environmental (01.05.2015)

“...•Zeolite HY modified with palladium as effective catalyst for the elimination of VOCs.•Superior activity resulted from of high acidity of zeolite and Pd...”

Journal Article

Catalytic removal of trichloroethylene from water over palladium loaded microporous and hierarchical zeolites

by Śrębowata, Anna Tarach, Karolina Girman, Vladimir Góra-Marek, Kinga Published in Applied catalysis. B, Environmental (01.02.2016)

“...[Display omitted] •Catalytic performance of Pd-zeolites in TCE HDH depends on their acidic and textural properties.•Both factors influence both noble metal...”

Journal Article

Ethylene formation by dehydration of ethanol over medium pore zeolites

by Gołąbek, Kinga Tarach, Karolina A Filek, Urszula Góra-Marek, Kinga Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (05.03.2018)

“...In this work, the role of pore arrangement of 10-ring zeolites ZSM-5, TNU-9 and IM-5 on their catalytic properties in ethanol transformation were investigated...”

Journal Article

Potassium-modified silica-supported vanadium oxide catalysts applied for propene epoxidation

by Held, Agnieszka Kowalska-Kuś, Jolanta Nowińska, Krystyna Góra-Marek, Kinga Published in Journal of catalysis (01.03.2017)

“...[Display omitted] •Propene to propylene oxide oxidation on potassium-doped vanadium catalysts.•Potassium modifier decreases the acidic character of surface...”

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