Dual-site catalysts featuring platinum-group-metal atoms on copper shapes boost hydrocarbon formations in electrocatalytic CO2 reduction

Manjeet Chhetri, Mingyu Wan, Zehua Jin, John Yeager, Case Sandor, Conner Rapp, Hui Wang, Sungsik Lee, Cameron J. Bodenschatz, Michael J. Zachman, Fanglin Che () and Ming Yang ()
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Manjeet Chhetri: Clemson University
Mingyu Wan: University of Massachusetts Lowell
Zehua Jin: Clemson University
John Yeager: Clemson University
Case Sandor: Clemson University
Conner Rapp: Clemson University
Hui Wang: Tianjin University of Technology
Sungsik Lee: Argonne National Laboratory
Cameron J. Bodenschatz: NASA John H. Glenn Research Center
Michael J. Zachman: Oak Ridge National Laboratory
Fanglin Che: University of Massachusetts Lowell
Ming Yang: Clemson University

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract Copper-based catalyst is uniquely positioned to catalyze the hydrocarbon formations through electrochemical CO2 reduction. The catalyst design freedom is limited for alloying copper with H-affinitive elements represented by platinum group metals because the latter would easily drive the hydrogen evolution reaction to override CO2 reduction. We report an adept design of anchoring atomically dispersed platinum group metal species on both polycrystalline and shape-controlled Cu catalysts, which now promote targeted CO2 reduction reaction while frustrating the undesired hydrogen evolution reaction. Notably, alloys with similar metal formulations but comprising small platinum or palladium clusters would fail this objective. With an appreciable amount of CO-Pd1 moieties on copper surfaces, facile CO* hydrogenation to CHO* or CO-CHO* coupling is now viable as one of the main pathways on Cu(111) or Cu(100) to selectively produce CH4 or C2H4 through Pd-Cu dual-site pathways. The work broadens copper alloying choices for CO2 reduction in aqueous phases.

Date: 2023
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DOI: 10.1038/s41467-023-38777-y

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