Core Insights - A new copper-doped molybdenum-nickel alloy catalyst has been developed to address cathode corrosion issues during the start-stop process of anion exchange membrane fuel cells [1][2] - The catalyst exhibits excellent catalytic activity for hydroxyl reactions and inertness to redox reactions in alkaline media, effectively suppressing transient interfacial potential spikes caused by parasitic redox reactions [1] Group 1: Catalyst Development - The research team successfully prepared the molybdenum-nickel alloy catalyst using microwave heating and subsequent thermal treatment [2] - This catalyst was utilized as an anode catalyst in the membrane electrode assembly of anion exchange membrane fuel cells for simulated start-stop cycling tests [2] Group 2: Performance Comparison - The results showed that the cathode potential transition during start-stop processes significantly decreased from 1.4 volts to a safer range when using the new catalyst compared to traditional platinum/carbon anodes [2] - After 10 start-stop cycles, the thickness of the cathode catalyst layer remained nearly unchanged, and the increase in cathode charge transfer resistance was much lower than that of platinum/carbon, with peak power density retention reaching 61%, significantly outperforming platinum/carbon's 28% and undoped molybdenum-nickel alloy's 47% [2] Group 3: Industry Implications - This research provides an efficient non-precious metal anode catalyst that offers a simple and effective solution to the critical reverse current decay issue during fuel cell start-stop processes, enhancing battery durability without complex system modifications [2]