XENON NMR ANALYSIS OF SULFIDED AND NON-SULFIDED NINAY ZEOLITE CATALYSTS PREPARED BY ION-EXCHANGE

Authors
KORANYI TI VANDEVEN LJM WELTERS WJJ DEHAAN JW DEBEER VHJ VANSANTEN RA
Citation
Ti. Koranyi et al., XENON NMR ANALYSIS OF SULFIDED AND NON-SULFIDED NINAY ZEOLITE CATALYSTS PREPARED BY ION-EXCHANGE, Colloids and surfaces. A, Physicochemical and engineering aspects, 72, 1993, pp. 143-152
Citations number
21
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
72
Year of publication
1993
Pages
143 - 152
Database
ISI
SICI code
0927-7757(1993)72:<143:XNAOSA>2.0.ZU;2-9
Abstract
NaY zeolites, ion-exchanged by Ni2+, are investigated by xenon adsorpt ion and by Xe-129 NMR. Sulfided and non-sulfided samples are compared. In addition sulfided samples are characterized by thiophene hydrodesu lfurization (HDS). The nickel species are mainly located inside the ze olitic structure in both types of sample, The small nickel sulfide clu sters are efficient thiophene HDS catalysts. Some aspects of the model s used to calculate supercage diameters from Xe-129 NMR chemical shift s are discussed.