Reaction Kinetics and Catalysis Letters, Vol.73, No.1, 63-70, 2001
Nature of the FTIR band in acidic zeolites
The nature of a FTIR band (1490 cm(-1)) in the spectrum of zeolite HZSM-5 after pyridine adsorption was investigated. It is shown that the source of this band is not a combined contribution from Bronsted and Lewis acidic sites as widely believed.