Advanced Ru‐Infiltrated Perovskite Oxide Electrodes for Boosting the Performance of Syngas Fueled Solid Oxide Fuel Cell

Abstract A promising Sr 2 Fe 1.5 Mo 0.5 O 6‐δ ‐Ce 0.8 Sm 0.2 O 1.9 (SFM‐SDC) anode material is modified by infiltrating Ru catalytic particles to enhance the electrochemical performance for H 2 /CO electro‐oxidation. The electrode polarization resistance (R p ), which is considerably affected by the pre‐sintering temperature, shows the lowest value of 0.67 Ω cm 2 at 800 °C in 3 % H 2 O humidified hydrogen for bare SFM‐SDC electrode calcined at 1050 °C. Furthermore, the R p value is favorably diminished to 0.22 Ω cm 2 after Ru infiltration. Meanwhile, the output power density exhibits a significant increment, proving the excellent electrocatalytic properties of Ru nano‐particles. Additionally, the single cell with infiltration presents a good short‐term stability even after redox operation.