Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Krystyna Nowińska"'
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:
Donalita Dudko, Krystyna Nowińska
Publikováno v:
Applied Catalysis A: General. 159:75-87
Heteropoly acid (HPA) salts containing transition metal cations have been applied as reoxidants of palladium(II) in heterogeneous Wacker catalyst for the oxidation of ethene to acetaldehyde. It has been found that the presence of transition metal cat
Autor:
Donalita Dudko, Krystyna Nowińska
Publikováno v:
Reaction Kinetics and Catalysis Letters. 61:187-192
Managanese salts of heteropoly acids (HPA) containing molybdenum and vanadium as poly atoms appeared to be active co-catalysts of palladium(II) in heterogeneous Wacker systems employed for ethene to acetaldehyde oxidation. The ethene conversion and t
Publikováno v:
Zeolites. 12:710-715
The activity and selectivity of Me 2+ NaX zeolites (Me = Cd, Zn, Ni, Co) and free and supported heteropoly acids (HPA) for hydrosulfurization of n - and i-PrOH have been investigated. The influence of concentration and strength of Bronsted acid cente
Publikováno v:
J. Chem. Soc., Faraday Trans.. 87:749-753
The effect of supports such as silica, alumina, amorphous aluminosilicate and magnesia on the activity of heteropoly acids (HPA) for reactions requiring strong and very strong acid sites has been studied. It has been found that 12-tungstophosphoric a
Autor:
Krystyna Nowińska, Waldemar Kaleta
Publikováno v:
Chemical Communications. :535-536
Heteropoly acids (HPA) have been immobilised inside the channels of Si-MCM-41 mesoporous molecular sieve by means of chemical bonding with amine groups introduced into the system during a previous aminosilylation procedure, which resulted in the stro
Autor:
Krystyna Nowińska
Publikováno v:
J. Chem. Soc., Chem. Commun.. :44-45
The noticeable activity of the ammonium salt of 12-tungstophosphoric acid for n-hexane conversion at low temperature suggests the presence of superacid sites on the catalyst surface.
Autor:
Krystyna Nowińska
Publikováno v:
Zeitschrift für Physikalische Chemie. 131:101-109
Autor:
Krystyna Nowińska
Publikováno v:
Zeitschrift für Physikalische Chemie. 126:117-125