Diffusion of propylene adsorbed in Na-Y and Na-ZSM5 zeolites: Neutron scattering and FTIR studies |
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| Authors: | S Gautam A K Tripathi V S Kamble S Mitra R Mukhopadhyay |
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| Institution: | (1) Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India;(2) Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India |
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| Abstract: | 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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| Keywords: | Neutron quasielastic scattering porous materials adsorption |
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