Porphyrin-based metal–organic frameworks anchored with Cu species for highly efficient electrocatalytic CO 2 reduction to CH 4

The Cu-PMOF showed excellent selectivity for the electroreduction of CO 2 to CH 4 , reaching a peak Faradaic efficiency of 80.4% at −300 mA cm −2 and achieving a maximum partial current density of −337.5 mA cm −2 at −1.23 V versus RHE.