Abstract
To produce green hydrogen in a cost-effective and efficient manner, the research on low-cost, high-performance electrocatalysts is both attractive and challenging. In this study, a heterojunction electrocatalyst containing V3O5 and FeCoNi alloy nanoparticles was introduced. The adsorption and activation of the reactants at the FeCoNi/V3O5 heterointerface are significantly enhanced. The overall performance of the FeCoNi/V3O5 catalyst is excellent, with an OER activity reaching 265 mV at a current density of 10 mA cm−2, nearly 65 mV lower compared to the commercial IrO2 catalyst. Furthermore, it exhibits outstanding durability, remaining stable for 50 h under a constant current density of 100 mA cm−2. Theoretical calculations also revealed a synergistic effect between the FeCoNi alloy (referred to as FeCoNi) nanoparticles and V3O5, thereby enhancing the OER performance, consistent with the experimental findings.
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