2 research outputs found

    Diffusion-Driven Selectivity in Oxidation of CO in the Presence of Propylene Using Zeolite Nano Shell as Membrane

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    The selective oxidation of CO over C<sub>3</sub>H<sub>6</sub> is achieved in yolk-shell Pt@Silicalite-1 catalysts in which Pt nanoparticles are encapsulated in hollow silicalite-1 single crystals. The thin shell operates as a permselective membrane which limits Pt surface poisoning by C<sub>3</sub>H<sub>6</sub>. From adsorption measurements, we conclude that the catalytic selectivity arises from the fastest diffusion of CO over C<sub>3</sub>H<sub>6</sub> through the silicalite-1 membrane
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