Post-synthetic modulation of UiO-66-NH2 with a cobaloxime catalyst for efficient hydrogen production

Abstract

Post synthetically-modified UiO-66-NH2 with a molecular cobaloxime [Co(DMG)2Cl2] (DMG = dimethylglyoxime) catalyst displays excellent photo-(404 μmol g−1 h−1) and electrocatalytic H2 evolution activity in an aqueous solution. Several analytical and spectroscopic methods, including femtosecond transient absorption spectroscopy and DFT, revealed the unique interaction between cobaloxime and the MOF leading to enhanced catalytic activity.