The Fe/Mo ordering at B-sites of Ba2FeMoO6-δ(BFM)were changed by adjusting Fe/Mo amount of substance ratio(i.e.,stoichiometric ratio),and then a new double-perovskite anode material Ba2Fe1.3Mo0.7O6-δ(BFM0.7)for SOFC were obtained.The results indicated that the electrical conductivity of the BFM0.7 anode is 15.0～20.0 S/cm at 600～800℃ in H2,which is much larger than that of the lowest target for SOFC electrode(0.1 S/cm).The peak power density and polarization resistance of the BFM0.7 anode cell attained 1 149 mW/cm2 and 0.15 Ω·cm2 at 850℃.Compared with BFM anode,the performance of BFM0.7 is significantly improved.In addition,the performance of BFM0.7 anode cell showed no degradation after testing for 39 h,indicating that the BFM0.7 anode possesses has excellent electrochemical stability.
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