Cathodized copper porphyrin metal-organic framework nanosheets for selective formate and acetate production from CO₂ electroreduction.

ABSTRACT: An efficient and selective Cu catalyst for CO₂ electroreduction is highly desirable since current catalysts suffer from poor selectivity towards a series of products, such as alkenes, alcohols, and carboxylic acids. Here, we used copper(ii) paddle wheel cluster-based porphyrinic metal-organic framework (MOF) nanosheets for electrocatalytic CO₂ reduction and compared them with CuO, Cu₂O, Cu, a porphyrin-Cu(ii) complex and a CuO/complex composite. Among them, the cathodized Cu-MOF nanosheets exhibit significant activity for formate production with a faradaic efficiency (FE) of 68.4% at a potential of -1.55 V versus Ag/Ag⁺. Moreover, the C-C coupling product acetate is generated from the same catalyst together with formate at a wide voltage r

SUBMITTER: Wu JX 

PROVIDER: S-EPMC6385528 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature