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dc.contributor.authorLi, Fengwang
dc.date.accessioned2021-09-10T00:56:18Z
dc.date.available2021-09-10T00:56:18Z
dc.date.issued2021en_AU
dc.identifier.urihttps://hdl.handle.net/2123/25966
dc.description.abstractCO2 electroreduction powered by renewable electricity represents a promising method to enclose anthropogenic carbon cycle. Current catalysts display high selectivity toward the desired product only over a narrow potential window due primarily to unoptimized intermediate binding. Here, we report a functional ligand modification strategy in which palladium nanoparticles are encapsulated inside metal–organic frameworks with 2,2′-bipyridine organic linkers to tune intermediate binding and thus to sustain a highly selective CO2-to-CO conversion over widened potential window. The catalyst exhibits CO faradaic efficiency in excess of 80% over a potential window from −0.3 to −1.2 V and reaches the maxima of 98.2% at −0.8 V. Mechanistic studies show that the 2,2′-bipyridine on Pd surface reduces the binding strength of both *H and *CO, a too strong binding of which leads to competing formate production and CO poison, respectively, and thus enhances the selectivity and stability of CO product.en_AU
dc.language.isoenen_AU
dc.publisherACSen_AU
dc.rightsCopyright All Rights Reserveden_AU
dc.titleBias-adaptable CO2-to-CO conversion via tuning the binding of competing intermediatesen_AU
dc.typeArticleen_AU
dc.subject.asrc0306 Physical Chemistry (incl. Structural)en_AU
dc.identifier.doi10.1021/acs.nanolett.1c02719
dc.relation.arcDE200100477
usyd.facultySeS faculties schools::Faculty of Engineering::School of Chemical and Biomolecular Engineeringen_AU
workflow.metadata.onlyNoen_AU


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