Abstract
Zeolites represent a class of technologically important materials because of their characteristic properties of molecular sieving and catalysis, which makes them indispensable in the petroleum industries. While the catalytic properties depend upon many factors, a major role is played by the dynamics of hydrocarbon gases. In order to be able to tailor make these materials for use in industry for catalytic and sieving purposes, it is important to understand the dynamical properties of the guest molecules adsorbed in the zeolitic materials. It is of interest to study the effects of size and shape of guest molecules and also the host zeolitic structure, governing the diffusion mechanism of the adsorbed species. Here we report the results of Quasielastic Neutron Scattering (QENS) and classical molecular dynamics (MD) simulation studies of two hydrocarbons namely acetylene and propylene adsorbed in two structurally different zeolites Na‐Y and ZSM‐5.
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