4.8 Article

Breaking the inverse relationship between catalytic activity and selectivity in acetylene partial hydrogenation using dynamic metal-polymer interaction

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Tailoring a Dynamic Metal-Polymer Interaction to Improve Catalyst Selectivity and Longevity in Hydrogenation

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Summary: Controlling metal-polymer interactions by supporting premade Pd particles on stable polymers with different ligating functionalities can tune the catalytic properties in acetylene partial hydrogenation. Polymers containing strongly ligating groups can form a polymer overlayer on the Pd surface, enabling selective acetylene adsorption and partial hydrogenation, while polymers with weakly ligating groups result in non-selective hydrogenation and fast deactivation. This study suggests that rational polymer design for tuning metal-polymer interactions provides an efficient way to synthesize selective and stable catalysts for hydrogenation.

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