Heterogeneity of hydroxyl groups in zeolites
- Jagiellonian Univ., Cracow (Poland)
Bridging Si-OH-Al groups in NaHZSM-5 and NaHY zeolites are heterogeneous; few kinds of hydroxyls of various acid strength exist. On the other hand, in the case of NaHX zeolite Si-OH-Al groups were found to be homogeneous (only one kind of hydroxyl). These results agree with the hypothesis that homogeneous Si-OH-Al groups are expected in zeolites in which all hydroxyls have the same Si-O and Al-O distances, Si-OH-Al bond angle, or the number of Al close to Si-OH-Al differs. 17 refs., 3 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 482249
- Journal Information:
- Langmuir, Journal Name: Langmuir Journal Issue: 10 Vol. 9; ISSN LANGD5; ISSN 0743-7463
- Country of Publication:
- United States
- Language:
- English
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