Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Zbigniew Kaszkur"'
Autor:
Rahma Abid, Bartosz Zawadzki, Jaroslav Kocik, Grzegorz Słowik, Janusz Ryczkowski, Mirosław Krawczyk, Zbigniew Kaszkur, Izabela S. Pieta, Anna Śrębowata
Publikováno v:
Molecules, Vol 29, Iss 14, p 3345 (2024)
Hydrotalcite-derived materials are eco-friendly, cheap, and efficient catalysts of different reactions. However, their application in liquid-phase hydrogenation could be more extensive. Hence, this work concerns the application of three hydrotalcite-
Externí odkaz:
https://doaj.org/article/bdc078f4601145b68cd7af8e7cf9cc61
Publikováno v:
Molecules, Vol 29, Iss 13, p 3180 (2024)
A new type of catalyst containing magnesium oxide modified with various modifiers ranging from bromine and iodine, to interhalogen compounds, hydrohalogenic acids, and alkyl halides have been prepared using chemical vapor deposition (CVD) and wet imp
Externí odkaz:
https://doaj.org/article/9e44f8c68ba8412cbc55848742941ec6
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract With decreasing size of crystals the number of their surface atoms becomes comparable to the number of bulk atoms and their powder diffraction pattern becomes sensitive to a changing surface structure. On the example of nanocrystalline gold
Externí odkaz:
https://doaj.org/article/1c5d388b90fd4c9cb04662e0ab9ff063
Publikováno v:
Catalysts, Vol 13, Iss 9, p 1229 (2023)
This is the first study to investigate the activity of a solid solution containing magnesium ions in a zirconia matrix in the catalytic transfer hydrogenation (CTH) of acetophenone with 2-pentanol. The results have shown that magnesium oxide is very
Externí odkaz:
https://doaj.org/article/11fc6d08c4c94d6c8d20845006a5a89d
Autor:
Magdalena Bonarowska, Zbigniew Kaszkur, Krzysztof Matus, Alicja Drelinkiewicz, Tomasz Szumełda, Adam Kubas
Publikováno v:
Chemistry, Vol 3, Iss 1, Pp 338-359 (2021)
We present an efficient strategy for synthesising the PdAu catalysts with a homogeneous PdAu alloy phase for environmentally important hydrodechlorination of tetrachloromethane in the gas phase. The synthesis of carbon-supported catalysts involved tw
Externí odkaz:
https://doaj.org/article/145a4a8dfc1b4975a3616f45e0ecd3ce
Autor:
Marek Gliński, Agnieszka Czajka, Urszula Ulkowska, Ewa M. Iwanek (nee Wilczkowska), Dariusz Łomot, Zbigniew Kaszkur
Publikováno v:
Catalysts, Vol 12, Iss 12, p 1595 (2022)
In this study, magnesium nitrate, chloride or sulphate were used in the synthesis of Mg(OH)2, the precursor of MgO. It was found that the counter ion strongly influences the purity of the Mg(OH)2, as well as the specific surface area of the obtained
Externí odkaz:
https://doaj.org/article/97eeb4a1fa2e46d4865110192de35cbc
Autor:
Ewa M. Iwanek (nee Wilczkowska), Marek Gliński, Aleksandra Siwiec, Sylwia Siennicka, Magdalena Zybert, Zbigniew Kaszkur
Publikováno v:
Catalysts, Vol 12, Iss 9, p 974 (2022)
Although heterogeneous monometallic gold catalysts are commonly more active when the gold particles are smaller, this study shows that the reverse is true in the case of liquid phase catalytic transfer hydrogenation of acetophenone with 2-pentanol. H
Externí odkaz:
https://doaj.org/article/b07a1b84706447abaec04e7234fd1cd9
Autor:
Ewa Maria Iwanek (nee Wilczkowska), Leonarda Francesca Liotta, Shazam Williams, Linjie Hu, Huitian Ju, Giuseppe Pantaleo, Zbigniew Kaszkur, Donald W. Kirk, Wojciech Patkowski, Marek Gliński
Publikováno v:
Catalysts, Vol 12, Iss 5, p 524 (2022)
The aim of these studies was to perform thorough research on the influence of alkali metal ions (Li, Na, K and Cs) on the properties of nanogold catalysts supported on ceria–zirconia. The addition of alkali metal ions onto CeO2 further affected the
Externí odkaz:
https://doaj.org/article/bfb15389d34541f89840a79a26056948
Autor:
Marek Gliński, Ewa M. Iwanek (nee Wilczkowska), Urszula Ulkowska, Agnieszka Czajka, Zbigniew Kaszkur
Publikováno v:
Catalysts, Vol 11, Iss 11, p 1338 (2021)
The first aim of the research was to synthesize a pure Upsalite, which is an amorphous form of MgCO3, by modifying a procedure described in the literature, so that it would be the precursor of a high-surface, amorphous magnesium oxide. The results in
Externí odkaz:
https://doaj.org/article/27a51ae4929844a9b2f56394011f2e46
Autor:
Ewa M. Iwanek (nee Wilczkowska), Leonarda Francesca Liotta, Shazam Williams, Linjie Hu, Huitian Ju, Giuseppe Pantaleo, Alisha Thapar, Zbigniew Kaszkur, Donald W. Kirk, Marek Gliński
Publikováno v:
Catalysts, Vol 11, Iss 9, p 1041 (2021)
Herein, the activity of Ag and bimetallic Au-Ag catalysts, supported over Ce0.85Zr0.15O2 (CZ), was investigated in a complex stream, whose components included CO, C3H8, NO, O2, and, optionally, an injection of water vapor. In such a stream, three of
Externí odkaz:
https://doaj.org/article/ec2c006713f4408a8d544c08595bad5b