Synthesis of Cobalt Complex Containing Trans-Cinnamate and Its Electrocatalytic Activity for Oxygen Evolution Reaction

There are many efforts reported on finding effective catalysts for oxygen evolution reactions (OERs), which important in the energy field. Coordination polymers, including metal–organic frameworks (MOFs), attracting attention as electrocatalysts OERs due to their versatility and modulating properties. A new cobalt complex containing trans-cinnamate 2-aminopyridmidine ligands was synthesized using a hydrothermal method. The showed 1D chain structure. electrocatalytic activity stability of with or without an electrochemical supporter, such reduced graphene oxide (rGO), were investigated compared metal reference material. Due π-conjugated trans-cinnamate, has electron flexibility near Co centers, catalyst/rGO composite significant catalytic activities, overpotential 386 mV Tafel slope 64 mV/dec.