Hydrophobic Polyoxometalate-Based Metal-Organic Framework for Efficient CO₂ Photoconversion

Abstract

A novel polyoxometalate (POM)-based metal-organic framework, TBA₅[P₂Mo₁₆^VMo₈^VIO₇₁(OH)₉Zn₈(L)₄] (<b>NNU-29</b>), was in situ synthesized and applied into CO₂ photoreduction. The selection of porous material containing a reductive POM cluster is considered to be helpful for CO₂ reduction; meanwhile, a hydrophobic-group-modified organic ligand enables <b>NNU-29</b> to exhibit good chemical stability and restrains hydrogen generation to some extent. In the photocatalytic CO₂ reduction, the yield of HCOO^- reached 35.2 μmol in the aqueous solution with selectivity of 97.9% after 16 h.