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Probing the evolution of water clusters during hydration of the solid acid catalyst H-ZSM-5

Harris, Kenneth David Maclean, Xu, Mingcan and Thomas, John Meurig 2009. Probing the evolution of water clusters during hydration of the solid acid catalyst H-ZSM-5. Philosophical Magazine 89 (33) , pp. 3001-3012. 10.1080/14786430903164606

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Abstract

A technique developed recently for in situ solid-state 1H NMR studies of adsorption processes has been used to probe hydration of the solid acid catalyst H-ZSM-5, yielding information on the interaction between the adsorbed water molecules and Brønsted acid sites on the H-ZSM-5 host material. Quantitative analysis of the results from the in situ experiment allows the average size of water clusters associated with the Brønsted acid sites to be determined directly, and suggests that there is a preference to form clusters comprising five–six water molecules. The in situ 1H NMR data also provide insights into kinetic aspects of the adsorption process.

Item Type: Article
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Adsorption ; NMR ; Solid-state chemistry ; Zeolites
Publisher: Taylor & Francis
ISSN: 1478-6435
Last Modified: 04 Jun 2017 02:51
URI: http://orca.cf.ac.uk/id/eprint/12813

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