Shamskhou, K.; Awada, H.; Yari, F.; Aljabour, A.; Schöfberger, W. A Molecular Binuclear Nickel (II) Schiff Base Complex for Efficient HER Electrocatalysis. Catalysts2023, 13, 1348.
Shamskhou, K.; Awada, H.; Yari, F.; Aljabour, A.; Schöfberger, W. A Molecular Binuclear Nickel (II) Schiff Base Complex for Efficient HER Electrocatalysis. Catalysts 2023, 13, 1348.
Shamskhou, K.; Awada, H.; Yari, F.; Aljabour, A.; Schöfberger, W. A Molecular Binuclear Nickel (II) Schiff Base Complex for Efficient HER Electrocatalysis. Catalysts2023, 13, 1348.
Shamskhou, K.; Awada, H.; Yari, F.; Aljabour, A.; Schöfberger, W. A Molecular Binuclear Nickel (II) Schiff Base Complex for Efficient HER Electrocatalysis. Catalysts 2023, 13, 1348.
Abstract
The hydrogen evolution reaction (HER) has garnered attention to access sustainable energy generation with a pollutant-free combustion product in the form of H2 gas. Despite the utility of this pathway in the context of growing climate concerns, stable HER electrocatalysts which avoid the use of rare-earth platinum while retaining high catalytic performance and efficiency remains a challenge. In this work, we present the application of a binuclear nickel (II/III) Schiff base complex [Ni]2[L]2 2 for HER electrocatalysis. The design of the electrocatalyst provides optimal HER activity as the presence of electronegative heteroatoms in proximity to the metal centers augments proton affinity. As a result, the catalyst displays excellent HER activity with 100% faradaic efficiency (FE) at an onset potential of 0.4 V vs. reverse hydrogen electrode (RHE), sustained catalytic activity during prolonged electrolysis for greater than 17 hours, and provided a turn over number (TON) of 0.0006 s-1.
Copyright:
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