Ce0.8Sr0.2Cr0.5V0.5 as the anode materials for H2S fueled solid oxide fuel cells

Ce_0.8Sr_0.2Cr_0.5V_0.5O_3-¿(CSCV) material was synthesized by gel combustion method. Performances of prepared material were characterized using TG-DTA, XRD methods. The conductivity of catalyst was measured with DC four probe method in 3% H₂-N₂ at 773-1173 K. The results show that CSCV materials with good heat-stability has perfect perovskite phase. Besides, CSCV materials exhibit good chemical compatibility with BaCe_0.45Zr_0.5Y_0.15O_3-¿ as electrolyte material in N₂, and the open circuit voltage is 0.85 V, the max power density is 50 mW/cm². Meanwhile, they maintain good chemical stability in H₂S atmosphere through XRD analysis. The CSCV sample showed the highest conductivity of 0.21 s/cm at 1173 K, which satisfies the anode catalyst of solid oxide fuel cell and would be a novel sulfur tolerant anode material.