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Probing acid sites in MAPO-36 by solid state NMR

✍ Scribed by S. Prasad; Dewey H. Barich; James F. Haw

Book ID
112412397
Publisher
Springer US
Year
1996
Tongue
English
Weight
425 KB
Volume
39
Category
Article
ISSN
1011-372X

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✍ Dieter Freude; Jacek Klinowski; Halimaton Hamdan πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 673 KB

H 2'AI and %i solid-state NMR was used to determine the geometry of the Brsnsted acid site in zeolites. The mean distance between acidic protons in bridging hydroxyl groups and the nearest framework Al atom is 2.38 ? 0.04 8, in zeolite H-Y and 2.48 2 0.04 A in H-ZSM-5. The quadrupole frequency of fr