Wolf, Patrick, Hammond, Ceri ORCID: https://orcid.org/0000-0002-9168-7674, Conrad, Sabrina and Hermans, Ive 2014. Post-synthetic preparation of Sn-, Ti- and Zr-beta: a facile route to water tolerant, highly active Lewis acidic zeolites. Dalton Transactions 43 (11) , pp. 4514-4519. 10.1039/c3dt52972j |
Abstract
A two-step procedure for the post-synthetic preparation of Lewis acidic Sn-, Zr- and Ti-zeolite β is reported. Dealumination of a commercially available Al-β zeolite leads to the formation of highly siliceous material containing silanol nests, which can be filled in a second step via the solid-state ion-exchange or impregnation of an appropriate metal precursor. Spectroscopic studies indicate that each metal is subsequently coordinated within the zeolite framework, and that little or no bulk oxides are formed – despite the high metal loadings. The synthesised catalysts demonstrate excellent activity for the isomerisation of glyceraldehyde to dihydroxyacetone, a key model reaction for the upgrading of bio-renewable feedstocks, and the epoxidation of bulky olefins.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Chemistry |
Subjects: | Q Science > QD Chemistry |
Publisher: | Royal Society of Chemistry |
ISSN: | 1477-9226 |
Last Modified: | 25 Oct 2022 09:10 |
URI: | https://orca.cardiff.ac.uk/id/eprint/57545 |
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