A Cu(111)@metal–organic framework as a tandem catalyst for highly selective CO2 electroreduction to C2H4

Abstract

Here, we report an improved tandem catalytic mechanism for electroreduction of CO₂ to C₂H₄. Cu(111) nanoparticles with an average size of 5.5 ± 0.9 nm were anchored on a conductive Cu-based metal–organic framework (Cu-THQ) by in situ electrochemical synthesis. Compared to Cu(111) nanoparticles, the C₂H₄ faradaic efficiency of the tandem catalyst Cu(111)@Cu-THQ was increased doubly.