Atomic-thin hexagonal CuCo nanocrystals with d-band tuning for CO2 reduction?
Journal of Materials Chemistry A Pub Date: 2021-03-18 DOI: 10.1039/D0TA12022G
Abstract
Regenerative energy replacing CO2-releasing fossil fuels has drawn widespread attention in wind/solar energy storage and conversion. In particular, CO2 reduction to valuable chemicals using renewable energy is attractive and alleviates global warming. Cu is prominent for CO2 reduction to derive multi-carbon products, such as ethylene. However, the productivity, energy efficiency, and cost-effectiveness of Cu-based electrocatalysts remain unsatisfactory in meeting industrial requirements. Hence, ultrathin CuCo nanocrystals are exploited for CO2 reduction to ethylene, delivering a high faradaic efficiency of 81.3% at a potential of ?1.5 V vs. reversible hydrogen electrode (RHE). Tailoring the d-band states and synergistic cooperation between Cu and Co are significant to boost activity via controlling the intermediate binding energy and lowering the reaction energy barriers.
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Journal Name：Journal of Materials Chemistry A
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CAS no.: 89640-58-4
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