Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
58879 | Catalysis Today | 2006 | 9 Pages |
Abstract
The low temperature adsorption of CO and the room temperature adsorption of propionitrile (PrN), isobutyronitrile (IBN) and pivalonitrile (2,2-dimethyl-propionitrile, PN) have been investigated on NaX (Si/Al atomic ratio = 1.3) and NaY (Si/Al atomic ratio = 2.4) zeolites by FT-IR spectroscopy. The bands of CO adsorbed on NaY have been reassigned. The relevance of Na+ ions at SIII or SIII′ positions also on NaY has been emphasized. Evidence is provided for the formation of complex interactions where nitrile molecules interact with more than one site, likely more than one Na ion, as previously observed on alkali metal containing MOR zeolites. The possible relevance of this interaction is briefly discussed.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Pawel Kozyra, Isabel Salla, Tania Montanari, Jerzy Datka, Pilar Salagre, Guido Busca,