Abstract
FTIR spectra of CO adsorbed at 100 K reveal remarkable acid strength of the free NH groups of tridentate ammonium ions in NH4FER zeolite.
Highlights
Introduction of CO at100 K leads to drastic changes in the N–H stretching region of the spectra (Fig. 2, spectrum a)
FTIR spectra of CO adsorbed at 100 K reveal remarkable acid strength of the free NH groups of tridentate ammonium ions in NH4FER zeolite
We have studied several materials and have chosen NH4FER as a model system because in this zeolite ammonia is essentially present as tridentate species having one free N–H bond
Summary
Introduction of CO at100 K leads to drastic changes in the N–H stretching region of the spectra (Fig. 2, spectrum a). Remarkable acid strength of ammonium ions in zeolites: FTIR study of low-temperature CO adsorption on NH4FER†
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