Reasonable design of perovskite electrodes via surface engineering to realize high activity and good durability is an attractive strategy for advanced symmetrical solid oxide fuel cells (S-SOFCs). Herein, we highlight uniformly distributed iron doped CeO₂ (FDC) nanoparticles decorated PrBaMn_0.5Fe_1.5O_5+δ perovskite (PBMF/FDC) via atomic layer deposition (ALD) as symmetric electrodes for S-SOFC. It is revealed that the ALD-FDC decoration contributes to both oxygen reduction and fuel oxidation kinetics, ultimately demonstrating high electrochemical performance. After the optimized FDC decoration, the interfacial polarization resistances decrease by 69 % in air and by 27% in 5 %H₂/Ar at 650 °C, respectively. As a demo, the peak power density of S-SOFCs with PBMF/FDC electrodes using hydrogen as a fuel delivers a high peak power density of 573 mW cm⁻² and 305 mW cm⁻² at 750 and 650 °C, respectively, superior to the bare PBMF based S-SOFCs. Moreover, the S-SOFCs with PBMF/FDC electrodes show long-lasting life when using humidified syngas and humidified C₃H₈ as fuels. These findings disclose a facile ALD approach to tailor perovskite electrodes for robust and efficient electrocatalysis.

通过表面工程合理设计钙钛矿电极以实现高活性和良好的耐久性是先进对称固体氧化物燃料电池（S-SOFC）的有吸引力的策略。在此，我们重点介绍了均匀分布的铁掺杂 CeO ₂ (FDC) 纳米颗粒通过原子层沉积 (ALD) 作为 S-SOFC 的对称电极来修饰 PrBaMn _0.5 Fe _1.5 O _{5+δ钙钛矿 (PBMF/FDC)。}结果表明，ALD-FDC 装饰有助于氧还原和燃料氧化动力学，最终表现出高电化学性能。经过优化的 FDC 装饰后，界面极化电阻在空气中降低了 69%，在 5%H _{2中降低了 27%}/Ar 在 650 °C，分别。作为演示，使用氢作为燃料的 PBMF/FDC 电极的 S-SOFC 的峰值功率密度在 750 和 650 °C 下分别提供 573 mW cm ^-2和 305 mW cm ^-2的高峰值功率密度，优于到基于裸 PBMF 的 S-SOFC。_{此外，当使用加湿合成气和加湿 C 3} H ₈作为燃料时，具有 PBMF/FDC 电极的 S-SOFC 具有较长的使用寿命。这些发现揭示了一种简便的 ALD 方法来定制钙钛矿电极，以实现稳健和高效的电催化。