The large-scale synthesis of catalysts with promising performance and durability for oxygen reduction reaction (ORR) is essential to the industrialization of proton exchange membrane fuel cells (PEMFCs). Pt-based alloys prepared using the co-doping strategy have shown great promise. Herein, we report a co-doping tactic for producing high-performance Pt–Cu–Co ternary alloy catalysts on a mass scale. Cu and Co are doped into the material in one step and the co-doping of Cu and Co can optimize the electronic structure of Pt, thereby weakening the adsorption of oxygenated species with Pt to enhance ORR activity. The PtCu_0·72Co_0.01 and PtCu_0·72Co_0.01–10 g (scaled-up production) exhibit superior mass activity of 0.52 A mg_Pt⁻¹ and 0.43 A mg_Pt⁻¹, respectively, and peak power density in H₂-Air conditions of 1.15 W cm⁻² and 1.01 W cm⁻². Furthermore, the mass activity of catalysts was only attenuated by 8.3% and 9.5% after 30,000 cycles, indicating reasonably good durability.

大规模合成具有良好性能和耐久性的氧还原反应 (ORR) 催化剂对于质子交换膜燃料电池 (PEMFC) 的工业化至关重要。使用共掺杂策略制备的 Pt 基合金显示出巨大的前景。在此，我们报告了一种用于大规模生产高性能 Pt-Cu-Co 三元合金催化剂的共掺杂策略。Cu和Co一步掺杂到材料中，Cu和Co的共掺杂可以优化Pt的电子结构，从而减弱含氧物质对Pt的吸附，从而提高ORR活性。PtCu _0·72 Co _0.01和 PtCu _0·72 Co _0.01 –10 g（放大生产）表现出 0.52 A mg _{Pt 的}优异质量活性^-1和 0.43 A mg _Pt ^-1，H ₂ -空气条件下的峰值功率密度分别为 1.15 W cm ^-2和 1.01 W cm ^-2。此外，催化剂的质量活性在 30,000 次循环后仅衰减 8.3% 和 9.5%，表明具有相当好的耐久性。