Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Gabriella Pál-Borbély"'
Autor:
H.K. Beyer, R.M. Mihályi, Ferenc Lónyi, Gabriella Pál-Borbély, Ágnes Szegedi, József Valyon, Márton Kollár
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 367:77-88
Phase-pure [Al]BEA and [Al,B]BEA zeolites, prepared by solid-state recrystallization of synthetic aluminum-containing magadiites and conventionally synthesized [B]BEA, were tested, after ion exchange with nickel, as bifunctional catalysts for hydroco
Autor:
Gabriella Pál-Borbély, Márton Kollár, Ferenc Lónyi, R.M. Mihályi, Andrea Szegedi, Károly Lázár
Publikováno v:
Microporous and Mesoporous Materials. 110:51-63
Aluminum-free MCM-22 type ferrisilicate, [Fe]MCM-22 (Si/Fe = 19.2) and, for comparison, MCM-22 aluminosilicate, [Al]MCM-22 (Si/Al = 13.1), were synthesized. The materials and their precursors were characterized by X-ray diffractometry (XRD), thermogr
Publikováno v:
Microporous and Mesoporous Materials. 99:37-46
Micro/mesoporous aluminosilicate composites were prepared applying a two-step hydrothermal synthesis procedure. In the first step a zeolitic component, i.e., the precursor of zeolite MCM-22 was synthesized and its swollen and partially delaminated de
Publikováno v:
Microporous and Mesoporous Materials. 98:132-142
A method for the preparation of phase-pure [Al]-BEA and [Al,B]-BEA zeolites based on solid-state recrystallization of synthetic aluminum-containing magadiites is presented. For comparison [B]-BEA was prepared by conventional hydrothermal synthesis. F
Publikováno v:
Czechoslovak Journal of Physics. 56:E109-E121
Siting of iron and its ability to take part in the Fe3+ ↔ Fe2+ redox process are correlated in certain micro-and mesoporous ferrisilicates as deduced from changes in coordination and oxidation states of iron followed from in situ Mossbauer spectros
Publikováno v:
Catalysis Today. 110:239-246
Iron was incorporated into microporous MFI analogue (ZSM-5, Si/Fe ∼ 200 and FER, Si/Fe = 16) and mesoporous MCM-41 hosts of different preparations (Si/Fe ∼ 100 and 20, respectively). Samples were characterized by in situ Mossbauer spectroscopy un
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 220:239-246
The effect of introduction of Lewis acid sites on the reactions of toluene transformation and catalysts coking has been studied over parent (Si/Al = 2.5) and dealuminated (Si/Al = 3.7) Y zeolites modified with Lewis connected InO+ cationic acid sites
Autor:
László P. Biró, Imre Kiricsi, Ágnes Szegedi, Edit Solymár, Gabriella Pál-Borbély, Zsolt Endre Horváth, Dóra Méhn, Zoltán Kónya
Publikováno v:
Applied Catalysis A: General. 272:257-266
Transition metal containing spherical MCM-41 silicates were prepared and characterized by transmission electron microscopy (TEM), XRD, BET, TPR and IR spectroscopy. Incorporation of aluminum, iron, cobalt, copper ions into the wall of the pores has b
Publikováno v:
Applied Catalysis A: General. 266:123-127
A solid-state ion-exchange method is described that introduces vanadium into zeolites BZSM-5, BBeta and their deboronated by washing forms at 773 K in hydrogen. Two types of vanadium species (vanadium ions in cationic position and VO 2+ complex in a
Autor:
Christo Minchev, Gabriella Pál-Borbély, V. Mavrodinova, Margarita Popova, Magdolna R. Mihályi
Publikováno v:
Applied Catalysis A: General. 262:75-83
Dealuminated in solid-state Y zeolite-modified with InO+ by the method of reductive solid-state ion exchange (RSSIE) followed by oxidation have been studied in the reactions of toluene and ethyl benzene disproportionation. The role of the as-created