An organic–inorganic hybrid polyoxoniobate decorated by a Co(iii)-amine complex for electrocatalytic urea splitting

Abstract

The overall energy efficiency of electrochemical systems is significantly reduced by the conventional anodic oxygen evolution reaction (OER). It is feasible to improve energy efficiency by replacing OER with the...

An hourglass-shaped nickel-based polyoxometalate crystalline material as a highly efficient bifunctional electrocatalyst for the oxygen evolution reaction and detection of H2O2

“…MoO 3 is soluble in alkaline solution to form molybdate and since the dissolution of Mo by leaching leads to the loss of lattice oxygen, it generated more oxygen vacancies and further enhances the formation of NiOOH. 1,62 This also highlighted the significance of NiOOH formed by Ni 3+ as one of the active centers in the entire reaction, ultimately improving the performance of the OER. 63–65 In order to further determine the elements that dominate the catalyst, we performed electrochemical tests on the catalyst without nickel (CUST-576(Ni 0 )).…”

“…The development of sustainable, clean, and efficient energy sources has become of paramount importance to meet the growing global population and energy crisis while improving energy scarcity and environmental degradation. 1–3 Water electrolysis has been widely studied due to its flexibility, high reaction controllability, and environmental friendliness. The water electrolysis consists of two fundamental processes: the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER).…”