作者: J. Datka , E. Broclawik , J. Klinowski , B. Gil
DOI: 10.1016/S0167-2991(08)63782-9
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摘要: Four kinds of bridging hydroxyls various acid strength:(AlO)a(SiO)3-aSi-OH-Al(SiO)3, n=0-3, have been found by IR spectroscopy in H-faujasites. The proportion between them depended on Si/Al ratio similarly to the Si(nAl) signals 29Si MAS NMR spectra. O-H dissociation energies derived from spectra were practically same as calculated quantum chemistry (MNDO method).