Cobalt-site cerium doped SmxSr1-xCoO3-delta oxides as potential cathode materials for solid-oxide fuel cells

Zhang GR; Dong XL; Liu ZK; Zhou W; Shao ZP; Jin WQ

Journal of Power Sources, Vol.195, No.11, 3386-3393, 2010

DOI10.1016/j.jpowsour.2009.12.039 Export Citation

Cobalt-site cerium doped SmxSr1-xCoO3-delta oxides as potential cathode materials for solid-oxide fuel cells

Zhang GR, Dong XL, Liu ZK, Zhou W, Shao ZP, Jin WQ

A series of new oxides with the nominal composition of Sm(x)St(1-x)Co(1-y)Ce(y)O(3-delta) (x = 0.1, 0.3, 0.5; y = 0.05, 0.1) were synthesized. Their crystal structure, morphology, thermal expansion and electrochemical properties were systematically investigated. A phase-pure perovskite-type Sm0.3Sr0.7Co0.95Ce0.05O3-delta oxide is obtained, while the other samples are actually composed of B-site cation deficient SmxSr1-xCo1-yCey-zO3-delta (0 < z

Keywords:Solid-oxide fuel cell;Cathode;Cerium dioxide;Thermal expansion coefficient;Electrical conductivity