Sorbate dynamics in zeolite catalysts

O'Malley, Alexander J. and Catlow, C. Richard A. ORCID: https://orcid.org/0000-0002-1341-1541 2017. Sorbate dynamics in zeolite catalysts. Fernandez-Alonso, F. and Price, D.L., eds. Neutron Scattering - Applications in Biology, Chemistry, and Materials Science, Vol. 49. Experimental Methods in the Physical Sciences, Elsevier, pp. 349-401. (10.1016/B978-0-12-805324-9.00006-6)

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Abstract

Microporous catalysts, in particular zeolites, are among the most intensively investigated systems in materials chemistry owing to the intrinsic challenges they provide in the characterization of their structures and properties, and to their major industrial applications. As discussed below, the microporous structure of the materials allows for the adsorption and diffusion of small- to medium-sized molecules into their pores—processes that are of crucial importance for the applications in both separations and catalysis. Studies of molecular diffusion are therefore a core area of zeolite science. As sorption and diffusion studies in zeolites are strongly focussed on hydrogen-containing molecules, neutron-based techniques have proved to be particularly effective in elucidating and quantifying the microscopic processes of molecular diffusion; and the interpretation of the data obtained from these techniques can be significantly enhanced by the concerted use of molecular simulation techniques. This chapter therefore outlines some notable studies using quasielastic neutron scattering probing molecular transport and dynamics in zeolites, which we place into the broader context of the investigation of sorbate behavior in these widely studied materials. Though we have focused on this specific class of materials, we note the applicability of all the following techniques to other classes of porous or framework materials (e.g., metal organic frameworks, carbon nanotubes, clathrates, polymers, and porous carbons).

Item Type:	Book Section
Book Type:	Edited Book
Date Type:	Published Online
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	Elsevier
ISBN:	9780128053249
ISSN:	1079-4042
Last Modified:	03 Nov 2022 10:12
URI:	https://orca.cardiff.ac.uk/id/eprint/107281

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