✦ LIBER ✦
Structure of a paramagnetic supermicroporous silica-based material via a multinuclear solid-state NMR monitoring
✍ Scribed by Vladimir I. Bakhmutov; Boris G. Shpeizer; Abraham Clearfield
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 154 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1927
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✦ Synopsis
Abstract
The paramagnetic Si/Al material doped with 19.8% (weight) of Mn^2+^ has been characterized by the ^1^H, ^13^C, ^27^Al, ^29^Si MAS NMR spectra and the ^1^H, ^29^Si T~1~MAS relaxation measurements as a gel dried at 130 °C and as samples calcined at 504, 540 and 650 °C. It has been demonstrated that in spite of strong paramagnetic effects, NMR monitoring in combination with ^29^Si T~1~ relaxation experiments can be successful for structural descriptions of porous materials. Copyright © 2007 John Wiley & Sons, Ltd.