Probing the dynamics of methanol in copper-loaded zeolites via quasi-elastic and inelastic neutron scattering

The dynamics of methanol within prototype methanol synthesis catalysts were studied using quasi-elastic neutron scattering. Three Cu-exchanged zeolites (mordenite, SSZ-13 and ZSM-5) were studied after methanol loading and showed jump diffusion coefficients between 1.04 × 10 −10 and 2.59 × 10 −10 m 2...

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Bibliographic Details
Published in:Frontiers of chemical science and engineering 2025, Vol.19 (1), Article 5
Main Authors: Skukauskas, Vainius, De Souza, Nicolas, Gibson, Emma K., Silverwood, Ian P.
Format: Article
Language:English
Subjects:
Catalysis for a sustainable future
Chemical synthesis
Chemistry
Chemistry and Materials Science
Clustering
Copper
Diffusion coefficient
Elastic scattering
Industrial Chemistry/Chemical Engineering
Inelastic scattering
Methanol
Nanotechnology
Neutron scattering
Research Article
Zeolites
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Summary:The dynamics of methanol within prototype methanol synthesis catalysts were studied using quasi-elastic neutron scattering. Three Cu-exchanged zeolites (mordenite, SSZ-13 and ZSM-5) were studied after methanol loading and showed jump diffusion coefficients between 1.04 × 10 −10 and 2.59 × 10 −10 m 2 ·s −1 . Non-Arrhenius behavior was observed with varying temperature due to methoxy formation at Brønsted acid sites and methanol clustering around copper cations.
ISSN:2095-0179
2095-0187
DOI:10.1007/s11705-024-2506-1