10 at.% ceria-substation on A-site for La 0.75 Sr 0.15 Ce 0.1 Cr 0.5 Mn 0.5 (noted as LSCCM) was synthesized by the sol-gel process. The characterizations were done by XRD and SEM. The structures, before and after exposure to 5% H 2 S-5% wet H 2 at 900 ℃, were demonstrated using X-ray diffraction (XRD). And best sulfur tolerance of LSCCM was studied. It also demonstrated that LSCCM had good structural compatibility with electrolyte YSZ. SEM test exhibits a homogeneous distribution of pores. The

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... results of electric performance test prove that the maximal power density was 16.03 mW·cm -2 in 5% H 2 S-5% wet H 2 at 900 . ℃ Index Terms-Symmetrical electrode, ceria-substation, sulfur tolerance, electrochemical performance. 2012. Yang Song was born in Shanxi, China, in 1986, obtained the Bachelor of Engineering of Engineering degrees in chemical engineering. Now she is a Ph.D degree candidate at School of Chemical Engineering, Nanjing University of science and technology, China. Her research focuses on SOFC, an efficient and environmental-friendly way to convert the chemical energy of fuels into electricity, avoiding combustion processes with a high conversion rate.