XIE Zhixiang ^{1, 2}, ZHAO Hailei ¹, LI Yueming ¹, CHEN Ting ¹
(1. School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi, China; 2. Unversity of
Science and Technology Beijing, Beijing 100083, China)

 Abstract: Sr₂Mg₀.₃Co₀.₇MoO₆ (SMCO) anode material and Ce₀.₈Gd₀.₂O₃(GDC) electrolyte material were synthesized via citrate acid-complex combustion. SMCO-GDC composite anodes were prepared with different GDC content. X-ray diffraction, scanning electron microscopy and AC impedance spectrum were employed to study the effect of GDC content on the phase structure, microstructure and electrochemical performance, respectively. The results reveal that SMCO has excellent chemical compatibility with GDC at 1250 ℃. The electrochemical performance improved by adding a small amount of GDC. The best anode performance was achieved at the mass ratio of SMCO/GDC = 4 : 1.The cell performance was decreased with the increase of GDC content.
Key words: Sr₂Mg₀.₃Co₀.₇MoO₆- Ce₀.₈Gd₀.₂O₃; composite anodes; electrochemical performance