By measurement of MAS prol@n magneuc resonance and near-infrared spes~ra. the ex~sw.ncc of bridging hydroxyl groups in MgNaA and CaNaA zeohle~ 1s excluded. The MAS proton magnclic resonance lines observed ar 2.5-3 ppm for CaNaA and at 3.5 pprn ror MgNaA (apart from the small contribuGons of "~erminn
1H NMR and catalytic studies of surface hydroxyl groups in aluminium phosphate catalysts
β Scribed by V.M. Mastikhin; I.L. Mudrakovsky; V.P. Shmachkova; N.S. Kotsarenko
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 195 KB
- Volume
- 139
- Category
- Article
- ISSN
- 0009-2614
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