Symmetrical solid oxide fuel cells (SSOFCs) could be alternative energy conversion devices due to their simple fabrication process and low cost. Herein, perovskite La_0.6Ce_0.1Sr_0.3Fe_0.95Ru_0.05O_3–δ (LCSFR) was synthesized and evaluated as a high-performance electrode for SSOFCs based on the electrolyte of La_0.9Sr_0.1Ga_0.8Mg_0.2O_3–δ (LSGM). LCSFR retains their stable perovskite crystal structure in both reducing and oxidizing atmospheres, though a minor amount of LaSrFeO₄ phase is present under reducing conditions. Morphology investigation shows that homogeneously dispersed Ru metallic nanoparticles are exsolved on the surface of LCSFR after being reduced. The polarization resistance (R_p) of LCSFR-CGO (Ce_0.9Gd_0.1O_2–δ) is about 0.11 Ω⋅cm² at 800 °C in air, while the value of R_p for LCSFR-CGO in wet H₂ (3% H₂O) increases up to 0.32 Ω⋅cm². The symmetrical LCSFR-CGO|LSGM|LCSFR-CGO cell demonstrates a performance with an open circuit potential (OCV) of 1.07 V and a maximum peak power density of 904 mW/cm² at 800 °C using wet H₂ as the fuel. This high performance indicates that LCSFR is a candidate electrode for SSOFCs.

对称固体氧化物燃料电池（SSOFCs）由于其简单的制造工艺和低成本可以成为替代的能量转换装置。在此，钙钛矿 La _0.6 Ce _0.1 Sr _0.3 Fe _0.95 Ru _0.05 O _{3– δ} (LCSFR) 被合成并评估为基于 La _0.9 Sr _0.1 Ga _0.8 Mg _0.2 O _{3– δ} ( LCSFR) 电解质的高性能 SSOFC 电极。LSGM）。LCSFR 在还原和氧化气氛中都保持其稳定的钙钛矿晶体结构，尽管少量的 LaSrFeO ₄相在还原条件下存在。形态学研究表明，均匀分散的 Ru 金属纳米粒子在被还原后溶出在 LCSFR 表面。极化电阻（[R _p的）LCSFR-CGO（铈_0.9的Gd _0.1 ø _{2- δ}）为约0.11Ω⋅cm ²在800℃下在空气中，而值[R _p在湿H代表LCSFR-CGO ₂（ 3% H ₂ O) 增加到 0.32 Ω⋅cm ²。对称 LCSFR-CGO|LSGM|LCSFR-CGO 电池的开路电位 (OCV) 为 1.07 V，最大峰值功率密度为 904 mW/cm ²在 800 °C 下使用湿 H ₂作为燃料。这种高性能表明 LCSFR 是 SSOFC 的候选电极。