cs501092b_si_001.pdf (1.5 MB)
Role of Isolated Acid Sites and Influence of Pore Diameter in the Low-Temperature Dehydration of Ethanol
journal contribution
posted on 2014-11-07, 00:00 authored by Matthew E. Potter, Mary E. Cholerton, Julija Kezina, Richard Bounds, Marina Carravetta, Maela Manzoli, Enrica Gianotti, Michael Lefenfeld, Robert RajaSilicoaluminophosphates, SAPO-5 and
SAPO-34, differ not only in
their pore diameters and structural topology but also in their preferred
mechanism of silicon substitution into the framework, which subsequently
influences the nature of the acid sites for solid-acid-catalyzed transformations.
This study combines 29Si NMR, FTIR, and DFT calculations
for probing the nature of the isolated acid sites, thereby affording
structure–property correlations, in the low-temperature catalytic
dehydration of ethanol to ethylene.