Adsorption of benzene and toluene on Y zeolites studied by infrared spectroscopy

摘要: The adsorption of benzene and toluene molecules on NaY, NaHY, dehydroxylated zeolites NaHY zeolite containing preadsorbed pyridine was studied by i.r. spectroscopy. frequencies the bands adsorbed are similar to those found for dissolved hydrocarbons, although intensity some is several times lower than in indicating that aromatic hydrocarbon cavities results a certain distortion electron cloud molecule. first or be bonded Na+ ions, next forming hydrogen bonds with OH groups vibrating at 3640 cm–1. frequency shift band may taken as measure their acid strength. strength high-frequency decreases amount adsorbed.