Single-Atom Alloy Formation via Reaction-Driven Catalyst Restructuring

We demonstrate that single-atom alloy catalysts can be made by exposing physical mixtures of monometallic supported Cu and Pd catalysts to vinyl acetate (VA) synthesis reaction conditions. This reaction induces the formation of mobile clusters of metal diacetate species that drive extensive metal na...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2024-07, Vol.146 (30), p.20989-20995
Main Authors: Giannakakis, Georgios, Soni, Yogita, Novotny, Gregory L., Zha, Zhaoru, Libretto, Nicole J., Dang, Yanliu, Suib, Steven L., Miller, Jeffrey T., Sykes, E. Charles H., Deshlahra, Prashant
Format: Article
Language:English
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Summary:We demonstrate that single-atom alloy catalysts can be made by exposing physical mixtures of monometallic supported Cu and Pd catalysts to vinyl acetate (VA) synthesis reaction conditions. This reaction induces the formation of mobile clusters of metal diacetate species that drive extensive metal nanoparticle restructuring, leading to atomic dispersion of the precious metal, smaller nanoparticle sizes than the parent catalysts, and high activity and selectivity for both VA synthesis and ethanol dehydrogenation reactions. This approach is scalable and appears to be generalizable to other alloy catalysts.
ISSN:0002-7863
1520-5126
1520-5126
DOI:10.1021/jacs.4c05980