Abstract
Herein, a series of CoIIIcorroles with different meso-substituents were successfully functionalized on gold electrodes through self-assembled axial coordination with 4-(methylthio)pyridine (MTP) and 4-(4-methylthiobenzo)pyridine (MTPP). The surface modified gold electrode performed enhanced and tunable electrochemically catalyzed hydrogen evolution behaviors that demonstrates the tunable surface molecular engineering of CoIIIcorroles via self-assembled monolayer is an effective strategy for energy related small molecule activations. Additionally, the CoIIIcorrole with electron-withdrawing meso-substituents axially coordinated with expanded conjugation system, 4-(4-methylthiobenzo)pyridine (MTPP), has the best performance of electrochemically catalyzed hydrogen evolutions.
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