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- W4385948650 abstract "Abstract Potentiodynamic methods that induce structural changes in Cu catalysts for the electrochemical reduction of CO 2 (CO 2 RR) have been identified as a promising strategy for steering the catalyst selectivity towards the generation of multi-carbon products. In current approaches, active species are created via a sequential Cu oxidation–reduction process. Here we show by in situ scanning tunnelling microscopy, surface X-ray diffraction and Raman spectroscopy measurements that low-coordinated Cu surface species form spontaneously near the onset of CO 2 electrocatalytic reduction. This process starts by CO-induced Cu nanocluster formation in the initial stages of the reaction, leading to irreversible surface restructuring that persists over a wide potential range. On subsequent potential increase, the nanoclusters disperse into Cu adatoms, which stabilize reaction intermediates on the surface. The observed self-induced formation of undercoordinated sites on the CO 2 -converting Cu catalyst surface can account for its reactivity and may be exploited to (re)generate active CO 2 RR sites by potentiodynamic protocols." @default.
- W4385948650 created "2023-08-18" @default.
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- W4385948650 date "2023-08-17" @default.
- W4385948650 modified "2023-10-17" @default.
- W4385948650 title "Atomic-scale surface restructuring of copper electrodes under CO2 electroreduction conditions" @default.
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- W4385948650 doi "https://doi.org/10.1038/s41929-023-01009-z" @default.
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