Xu, Mingcan., Harris, Kenneth David MacLean  ORCID: https://orcid.org/0000-0001-7855-8598 and Thomas, John Meurig
2009.
In situ solid-state 1H NMR studies of hydration of the solid acid catalyst ZSM-5 in its ammonium form.
Solid State Nuclear Magnetic Resonance
35
(2)
, pp. 93-99.
10.1016/j.ssnmr.2008.12.011
|
Abstract
Hydration of the ammonium form of the solid acid catalyst ZSM-5 is investigated by applying a technique that has been developed recently for carrying out in situ solid-state NMR studies of adsorption processes. From 1H MAS NMR spectra recorded as a function of time and temperature during the hydration process, insights are established on the nature of the interaction between the adsorbed water molecules and the ammonium cations in the ZSM-5 material. The change in isotropic chemical shift for the ammonium cations is consistent with the formation of N–H⋯O hydrogen bonding with the water molecules. Studies of the adsorption of deuterated water, and dehydration of the hydrated material, are also reported.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Chemistry |
| Subjects: | Q Science > QD Chemistry |
| Uncontrolled Keywords: | Hydration; ZSM-5; In situ; Adsorption; Solid-state NMR |
| Publisher: | Elsevier |
| ISSN: | 0926-2040 |
| Last Modified: | 17 Oct 2022 09:55 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/6175 |
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