Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Anna Malaika"'
Autor:
Jolanta Kowalska-Kuś, Anna Malaika, Agnieszka Held, Aldona Jankowska, Ewa Janiszewska, Michał Zieliński, Krystyna Nowińska, Stanisław Kowalak, Klaudia Końska, Krzysztof Wróblewski
Publikováno v:
Molecules, Vol 29, Iss 17, p 4102 (2024)
Solketal, a widely used glycerol-derived solvent, can be efficiently synthesized through heterogeneous catalysis, thus avoiding the significant product losses typically encountered with aqueous work-up in homogeneous catalysis. This study explores th
Externí odkaz:
https://doaj.org/article/f5c17787037049c6a28fe08a5f20f7a0
Autor:
Karolina Ptaszyńska, Anna Malaika, Katarzyna Morawa Eblagon, José Luís Figueiredo, Mieczysław Kozłowski
Publikováno v:
Molecules, Vol 29, Iss 7, p 1623 (2024)
A facile and eco-friendly approach using in situ-generated 4-benzenediazonium sulfonate (BDS) was applied to prepare highly functionalized carbon nanotubes (CNTs). The effectiveness of this functionalization was additionally enhanced by a green and s
Externí odkaz:
https://doaj.org/article/00b262b646564771968ac57c0e1c5564
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Carbon fibers (CFs) of high quality were produced from hydrocarbons such as isobutane or ethylene using the catalytic chemical vapor deposition method (CCVD) and Ni catalyst. The as-prepared samples were functionalized with acidic groups usi
Externí odkaz:
https://doaj.org/article/297c02d5ccb444ad81d1c7dbdbd2392a
Autor:
Anna Malaika, Jolanta Kowalska-Kuś, Klaudia Końska, Karolina Ptaszyńska, Aldona Jankowska, Agnieszka Held, Krzysztof Wróblewski, Mieczysław Kozłowski
Publikováno v:
Molecules, Vol 28, Iss 24, p 8137 (2023)
Recovered carbon blacks (rCBs) produced from end-of-life tires using pyrolysis were transformed into solid acid catalysts for the synthesis of acetins, i.e., products with a wide spectrum of practical applications. Tuning the chemical properties of t
Externí odkaz:
https://doaj.org/article/c5f5115f390d49f49a96c84b46c7d8d4
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
Abstract Ethylene was thermocatalytically transformed into carbon products via a CCVD process. The filamentous carbon obtained was further modified with concentrated sulfuric acid or 4‐benzenediazonium sulfonate (BDS) to produce acid-type catalysts
Externí odkaz:
https://doaj.org/article/3edfdb40d2074f7483d38ad581048c33
Publikováno v:
Molecules, Vol 28, Iss 18, p 6534 (2023)
The results of sustainable and selective synthesis of glycerol carbonate (GC) from urea and glycerol under ambient pressure using carbon-fiber-supported metal oxide catalysts are reported. Carbon fibers (CF) were prepared via a catalytic chemical vap
Externí odkaz:
https://doaj.org/article/21e3a460958347e19b3ba4df2b657cec
Publikováno v:
Arabian Journal of Chemistry, Vol 12, Iss 8, Pp 4947-4956 (2019)
Oxidative dehydrogenation of hydrocarbons has been gained much attention for years as the use of an oxidant allows overcoming the thermodynamic limitations of the classical dehydrogenation reaction. In this paper, the catalytic oxidative dehydrogenat
Externí odkaz:
https://doaj.org/article/9854e92c39934b5bba09fd355b481111
Autor:
Katarzyna Morawa Eblagon, Anna Malaika, Karolina Ptaszynska, Manuel Fernando R. Pereira, José Luís Figueiredo
Publikováno v:
Nanomaterials, Vol 10, Iss 9, p 1685 (2020)
The cascade dehydration of glucose to 5-hydroxymethylfurfural (HMF) was carried out in water over a series of Nb2O5 catalysts, which were derived from the thermal treatment of niobic acid at 300 and 550 °C, under air or inert atmosphere. Amorphous n
Externí odkaz:
https://doaj.org/article/c3bc81e605424aeeb0752d1438830272
Autor:
Katarzyna Morawa Eblagon, Anna Malaika, Karolina Ptaszyńska, M.Fernando R. Pereira, Mieczysław Kozłowski, José Luís Figueiredo
Publikováno v:
Catalysis Today. 418:114070
Publikováno v:
Catalysis Today. 357:102-112
The heterogeneous base-catalysed transesterification of rapeseed oil was performed in the presence of modified activated carbons to obtain biodiesel fuel. The basic strength of the initial carbon sample was enhanced through its treatment with differe