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

被引：0
|
作者：
Skukauskas, Vainius [1 ,2 ]
De Souza, Nicolas [3 ]
Gibson, Emma K. [1 ,2 ]
Silverwood, Ian P. [1 ,4 ]
机构：
[1] Harwell Sci & Innovat Campus, Rutherford Appleton Lab, UK Catalysis Hub, Res Complex Harwell, Harwell OX11 0FA, England
[2] Univ Glasgow, Sch Chem, Glasgow City G12 8QQ, Scotland
[3] Australian Nucl Sci & Technol Org ANSTO, Melbourne, NSW 2232, Australia
[4] Harwell Sci & Innovat Campus, Sci & Technol Facil Council, Rutherford Appleton Lab, ISIS Neutron & Muon Facil, Harwell OX11 0QX, England
来源：
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING | 2025年 / 19卷 / 01期
关键词：
quasielastic neutron scattering; inelastic neutron scattering; methanol; diffusion; zeolites; DIFFUSION; ALKANES; VISUALIZATION;
D O I：
10.1007/s11705-024-2506-1
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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 x 10-10 and 2.59 x 10-10 m2<middle dot>s-1. Non-Arrhenius behavior was observed with varying temperature due to methoxy formation at Br & oslash;nsted acid sites and methanol clustering around copper cations.
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页数：6
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