Xenon NMR analysis of sulfided and non-sulfided NiNaY zeolite catalysts prepared by ion exchange

Autor:	L.J.M. van de Ven, J.W. de Haan, R.A. van Santen, V.H.J. de Beer, W. J. J. Welters, Tamás I. Korányi
Přispěvatelé:	Inorganic Materials & Catalysis, Materials and Interface Chemistry, Chemical Engineering and Chemistry
Rok vydání:	1993
Předmět:	Nickel chemistry.chemical_compound Colloid and Surface Chemistry Nickel sulfide Ion exchange Chemistry Inorganic chemistry Thiophene chemistry.chemical_element Zeolite Molecular sieve Hydrodesulfurization Catalysis
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects, 72(1-3), 143-152. Elsevier
ISSN:	0927-7757
DOI:	10.1016/0927-7757(93)80460-v
Popis:	NaY zeolites, ion-exchanged by Ni 2+ , are investigated by xenon adsorption and by 129 Xe NMR. Sulfided and nonsulfided samples are compared. In addition sulfided samples are characterized by thiophene hydrodesulfurization (HDS). The nickel species are mainly located inside the zeolitic structure in both types of sample. The small nickel sulfide clusters are efficient thiophene HDS catalysts. Some aspects of the models used to calculate supercage diameters from 129 Xe-NMR chemical shifts are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e91b8949c09ff5b2e37f4525f75909d https://doi.org/10.1016/0927-7757(93)80460-v Zobrazit plný text záznamu