Active sites for isotopic exchange of oxygen between proton-exchanged ZSM-5 zeolites and water
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 8,p. 975-976
- https://doi.org/10.1039/c39940000975
Abstract
Mass and infrared spectroscopy on the title reaction have indicated the presence of three kinds of framework oxygen (O1, O2 and O3, corresponding to easily, moderately, and hardly exchanging oxygens respectively), of which O1 and O2 are bridging oxide ions bound to Al and exchangeable with water by the contribution of neighbouring proton, and O3 is a bridging oxide ion between two Si atoms.Keywords
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