LAUSR

Efficient formation of valuable multicarbon products in CO 2 electrochemical reduction is challenging due to the difficult C-C coupling. Herein, medium micropores embedded in the channel wall of nitrogen-doped ordered mesoporous carbon are reported to capably promote ethanol production from CO 2 electroreduction. By scaling up the medium micropore content, the yield of ethanol is boosted up to 2.3 mmol∙g cat -1 ∙h -1 , far outperforming the previously reported state-of-the-art electrocatalysts. The intrinsically higher activity is attributed to the desolvation effect induced by the medium micropores, facilitating the coupling reaction of C 1 intermediates to form ethanol.