Extraframework aluminium in steam- and SiCl4-dealuminated Y zeolite. A 27Al and 29Si nuclear magnetic resonance study
- 1 January 1988
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 84 (9) , 3113-3119
- https://doi.org/10.1039/f19888403113
Abstract
29 Si and 27Al m.a.s.n.m.r. techniques have been used to study the dealumination process of a Y zeolite. Dealumination by steaming or SiCl4 treatment leads to the formation of silica and/or silica–alumina type phases. Extraframework aluminium shows a different type of coordination (tetra-, penta- or octa-hedral) depending on the method of dealumination.Keywords
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