𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Investigation of 27Al-NMR chemical shifts in zeolites of the faujasite type

✍ Scribed by Dozent Dr. D. Freude; Dipl.-Phys. H.-J. Behrens


Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
197 KB
Volume
16
Category
Article
ISSN
0232-1300

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Longitudinal NMR relaxation of 27Al nucl
✍ JΓΌrgen Haase; Harry Pfeifer; Wolfgang Oehme; Jacek Klinowski πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 385 KB

Longitudinal relaxation times, T,, of "Al in zeolitic frameworks are between z 0.3 and 70 ms depending on temperature. The relaxation IS governed by the electric quadrupole interaction with the crystal electric field gradients modulated by translational motion of polar sorbate molecules and charge-c

NMR studies of 27Al in decationated Y ze
✍ V BosÑček; D Freude; T FrΓΆhlich; H Pfeifer; H Schmiedel πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 444 KB
Diffusion behavior of the benzene molecu
✍ Yu-Huei Chen; Lian-Pin Hwang πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 110 KB πŸ‘ 1 views

Deuteron NMR relaxation methods including double quantum filtered (DQF) spectral analyses were examined to study the dynamics of benzene molecules adsorbed in faujasite-type zeolite. To describe the dynamics of benzene molecules, a modified cone model involving in-plane rotation, wobbling motion and

27Al&{1H} cross-polarization and ultrahi
✍ Lars Kellberg; Magnus Linsten; Hans J. Jakobsen πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 545 KB

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