A Cu(111)@metal-organic framework as a tandem catalyst for highly selective CO electroreduction to CH.

Here, we report an improved tandem catalytic mechanism for electroreduction of CO to CH. 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 electrochemical synthesis. Compared to Cu(111) nanoparticles, the CH faradaic efficiency of the tandem catalyst Cu(111)@Cu-THQ was increased doubly.