在完成高熵觸媒的開發後進行小型觸媒量產試驗，目前可在一批 次下生產 6 g 觸媒粉末，並驗證了相同/不同的觸媒生產批次之催化活 性與元素組成擁有極高的再現性，有助於提升未來大規模量產之開發。 最後，將高熵觸媒應用於陰離子交換膜水電解器中，在 60°C 的鹼性 水與鹼性海水下，其能量效率分別達到 87.4% 與 81.1%，運行 1000 小時後仍保持穩定，展現高熵觸媒的產業應用潛力與商業化可行性。;The oxygen evolution reaction (OER) in seawater electrolysis faces significant challenges, including sluggish reaction kinetics and severe corrosion, necessitating the development of advanced OER catalysts to facilitate the advancement of hydrogen energy technologies. In this study, a facile polyol solvothermal method was successfully developed for synthesizing FeNiCoMnCr high-entropy carbonate catalyst (HEC). The catalyst exhibited excellent electrocatalytic performance in alkaline media, achieving a low overpotential of 290 mV at 10 mA cm⁻² and a low Tafel slope of 46.7 mV dec⁻¹ in 1 M KOH. Even in 1 M KOH + seawater, the performance only slightly increased to 316 mV and 51.9 mV dec⁻¹, respectively. Long-term electrolysis for 1000 hours resulted in only 0.7% performance degradation, demonstrating superior catalytic activity and stability of HEC that surpasses many international journals benchmarks.
Following the catalyst development, a small-scale production trial was conducted, achieving a yield of 6 g per batch. The catalytic activity and elemental composition were found to be highly reproducible across different batches, supporting the feasibility of future large-scale synthesis. Finally, integration of the high-entropy catalyst into an anion exchange membrane water electrolyzer (AEMWE) system demonstrated outstanding energy efficiencies of 87.4% in alkaline water and 81.1% in alkaline seawater at 60 °C. After 1000 hours of continuous operation, the system remained stable, indicating strong potential for industrial application and commercialization of high-entropy catalysts.
