Abstract
Practical CO2 and CO electroreduction are often operated at elevated temperatures, yet the correlation between the temperature increase and catalytic activity and selectivity has not been well‐defined. This study uncovers that higher temperatures enhance *CO coverages, but in CO2 reduction, they also promote *CO desorption to vapor‐phase CO, lowering C2H4 selectivity. In CO reduction, elevated temperatures facilitate CO diffusion to overcome the unfavorable *CO adsorption thermodynamics, which promotes C—C coupling. More details are discussed in the article by Wang et al. on pages 2705—2711. image
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