Herein, we report an effective strategy for improving the electrocatalytic CO reduction reaction (CORR) performance of a Zn foil electrode concurrent surface reconstruction and interfacial surfactant modification. The oxide-derived and CTAB-modified Zn electrode (OD-Zn-CTAB) prepared by electrochemically reducing the air-annealed Zn foil electrode in the presence of CTAB exhibits high electrocatalytic activity and selectivity for CO production with a CO partial current density () of 8.2 mA cm and a CO faradaic efficiency (FE) of 90% at -1.0 V . the reversible hydrogen electrode (RHE), greatly outperforming the pristine Zn foil (FE = 32.0%; = 0.5 mA cm) and OD-Zn (FE = 77.6%; = 5.0 mA cm) obtained by electroreduction of annealed Zn. The greatly enhanced CORR performance of OD-Zn-CTAB can be attributed to the increased number of active sites originating from the surface reconstruction and the formation of a favorable CTAB-modified electrode/electrolyte (/) interface that can efficiently adsorb and activate CO while inhibiting the competitive H evolution reaction.
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