Preferential Clustering of Water Molecules During Hydration of the Ammonium Form of the Solid Acid Catalyst ZSM-5

Xu, Mingcan, Harris, Kenneth David Maclean ORCID: https://orcid.org/0000-0001-7855-8598 and Thomas, John Meurig 2009. Preferential Clustering of Water Molecules During Hydration of the Ammonium Form of the Solid Acid Catalyst ZSM-5. Catalysis Letters 131 (1-2) , pp. 16-20. 10.1007/s10562-009-0031-y

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Abstract

Hydration of the ammonium form of the solid acid catalyst ZSM-5 is investigated by applying a technique developed recently for in situ solid-state NMR studies of adsorption processes. From high-resolution solid-state 1H NMR spectra recorded as a function of time during the hydration process, insights are established concerning the nature of the interaction between the adsorbed water molecules and the ammonium cations in the ZSM-5 host material. In particular, quantitative information is established regarding the clustering of water molecules during the hydration process, and indicates the preferential formation of clusters comprising two water molecules associated with each hydrated ammonium cation.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	Zeolite - Hydration
Publisher:	Springer
ISSN:	1011-372X
Last Modified:	17 Oct 2022 09:55
URI:	https://orca.cardiff.ac.uk/id/eprint/6174

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