Performance of double-perovskite Sr2−xSmxMgMoO6−δ as solid-oxide fuel-cell anodes

- The double-perovskite Sr2−xSmxMgMoO6−δ displayed good electrochemical performance as SOFC anodes.
- The substitution of Sm for Sr greatly increased the electrical conductivity of the Sr2−xSmxMgMoO6−δ.
- The Sr2−xSmxMgMoO6−δ (x = 0.4) anode offered a better thermal expansion match to the LaGaO3-based electrolyte.
- The Sr2−xSmxMgMoO6−δ (x = 0.4) anode exhibited good carbon and sulfur tolerance in the commercial city gas containing H2S.