4.3 Article

Diffusion of propylene adsorbed in Na-Y and Na-ZSM5 zeolites: Neutron scattering and FTIR studies

Journal

PRAMANA-JOURNAL OF PHYSICS
Volume 71, Issue 5, Pages 1153-1157

Publisher

INDIAN ACAD SCIENCES
DOI: 10.1007/s12043-008-0239-1

Keywords

Neutron quasielastic scattering; porous materials; adsorption

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Here we report the quasielastic neutron scattering and FTIR studies on the dynamics of propylene adsorbed in Na-Y and Na-ZSM5 zeolites. QENS data show that although the mechanism of translational motion of propylene is jump diffusion in both the cases of Na-Y and Na-ZSM5 zeolites, the diffusivity is affected by the host size and is hindered in the case of Na-ZSM5. FTIR studies showed that guest-host interaction in Na-ZSM5 is stronger than that in Na-Y zeolite corroborating the QENS results.

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