ACTIVE-SITES FOR ISOTOPIC EXCHANGE OF OXYGEN BETWEEN PROTON-EXCHANGEDZSM-5 ZEOLITES AND WATER

Citation
H. Mori et al., ACTIVE-SITES FOR ISOTOPIC EXCHANGE OF OXYGEN BETWEEN PROTON-EXCHANGEDZSM-5 ZEOLITES AND WATER, Journal of the Chemical Society, Chemical Communications, (8), 1994, pp. 975-976
Citations number
23
Categorie Soggetti
Chemistry
ISSN journal
00224936
Issue
8
Year of publication
1994
Pages
975 - 976
Database
ISI
SICI code
0022-4936(1994):8<975:AFIEOO>2.0.ZU;2-E
Abstract
Mass and infrared spectroscopy on the title reaction have indicated th e presence of three kinds of framework oxygen (O-1, O-2 and O-3, corre sponding to easily, moderately, and hardly exchanging oxygens respecti vely), of which O-1 and O-2 are bridging oxide ions bound to Al and ex changeable with water by the contribution of neighbouring proton, and O-3 is a bridging oxide ion between two Si atoms.