MOF-Derived Cu₂O/Cu Nanospheres Anchored in Nitrogen-Doped Hollow Porous Carbon Framework for Increasing the Selectivity and Activity of Electrochemical CO₂-to-Formate Conversion

Copper-based metal–organic frameworks (MOFs) and their derivatives have been used for CO2 electroreduction; however, they still have obvious drawbacks like poor selectivity and durability. Here, Cu_btc (btc = benzene-1,3,5-tricarboxylate)-derived Cu2O/Cu anchored in a nitrogen-doped porous carbon framework (Cu2O/Cu@NC) was prepared for CO2 electroreduction. Cu2O/Cu@NC-800 (carbonizing Cu_btc at 800 °C) produced formate and ethanol concurrently...