41 MAS NMR spectroscopy with 'H cross-polarization is shown to be an efficient technique for distinguishing non-framework from framework Al in USY zeolites and has revealed the presence of non-framework tetrahedral Al. Field-dependent measurements and simulations show that the non-framework 30 ppm 2
27Al → 1H cross-polarization in aluminosilicates
✍ Scribed by Waclaw Kolodziejski; Avelino Corma
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 284 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0926-2040
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