Dynamics of water within Cu-loaded zeolites: a quasielastic neutron scattering study

Skukauskas, V., Silverwood, I. P. and Gibson, E. K. (2022) Dynamics of water within Cu-loaded zeolites: a quasielastic neutron scattering study. Catalysis Communications, 165, 106429. (doi: 10.1016/j.catcom.2022.106429)

Abstract

Quasielastic Neutron Scattering (QENS) was employed in order to probe the dynamics of water confined within copper-loaded MOR, MFI and CHA zeolite frameworks in the temperature range 100–300 K. At 100 K, motion was outside the experimental time window and the adsorbate appeared static. Rotational line broadenings were observed across all three Cu-zeolites at 200 K; and both rotation and translation were observed at 300 K. The findings indicate Cu content and the cavity size affect water mobility, which appears to represent diffusion within localised clusters.

• Item Type: Articles
• Additional Information: This work was jointly supported by the ISIS Neutron & Muon Source and University of Glasgow by the award of a Facilities Development Studentship (V.S.). Neutron beamtime was awarded by ISIS (RB2010477). EPSRC funds the UK Catalysis Hub (EP/R026939/1, EP/R026815/1) which provided resources and support at the Research Complex at Harwell.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Skukauskas, Vainius and Silverwood, Dr Ian and Gibson, Dr Emma
• Authors: Skukauskas, V., Silverwood, I. P., and Gibson, E. K.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Catalysis Communications
• Publisher: Elsevier
• ISSN: 1566-7367
• ISSN (Online): 1873-3905
• Published Online: 16 February 2022
• Copyright Holders: Copyright © 2022 The Authors
• First Published: First published in Catalysis Communications 165: 106429
• Publisher Policy: Reproduced under a Creative Commons License