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Rich Cu+-OV-Ce3+ motifs enable highly efficient electrochemical CO2 reduction to C2H4 over CuCe-based oxide catalysts
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DOI：10.1016/j.jallcom.2026.190278.png)
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Abstract
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• Cu+-OV-Ce3+ motif content can be tuned by adjusting CeO2 morphology and Cu loading in CuCe-based oxide catalysts. • 10CuCe-S (CeO2 nanospheres loaded with 10 wt% Cu) shows a maximum Cu⁺ density of 69.2%. • A C2H4 Faradaic efficiency as high as 40.2% is achieved by 10CuCe-S. • The Cu+-OV-Ce3+ motif boosts C-C coupling efficiency by enhancing and stabilizing Cu+.
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