Dehydration of silica-aluminas monitored by high-resolution solid-state proton NMR

Journal Article · Wed Mar 04 04:00:00 EST 1987 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00239a043· OSTI ID:6802139

Bronnimann, C E; Chuang, I; Hawkins, B L; Maciel, G E

Knowledge of the acid sites on silica-aluminas and zeolites has been addressed by various techniques. With a combination of multiple-pulse techniques and magic-angle spinning (MAS) one can obtain high-resolution /sup 1/H NMR spectra of solid samples. In this paper they report the initial results of a study of the dehydration of silica-alumina, silica gel, and ..gamma..-alumina by the /sup 1/H CRAMPS (combined rotation and multiple-pulse spectroscopy) NMR technique.

• Research Organization: Colorado State Univ., Fort Collins
• OSTI ID: 6802139
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 109:5; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORBENTS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
DATA
DEHYDRATION
EXPERIMENTAL DATA
INFORMATION
MAGNETIC RESONANCE
MINERALS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PULSE TECHNIQUES
RESONANCE
SILICA
SILICA GEL
SILICON COMPOUNDS
SILICON OXIDES
SPECTRA
SPECTROSCOPY