Synthesis and Characterization of Ln0.6Sr0.4Fe1-χCoχO3-σ for ITSOFC

Abstract

Abstract: The powders of Ln_0.6Sr_0.4Fe_1-xCo_xO_3-δ(Ln=La, Pr, Nd, Sm and Gd) were obtained by solid state reactions. The cell
parameters of the specimens were analysised by XRD. The change in mass and oxygen stoichiometry of the samples as a function of temperature was determined
by TGA. The electrical conductivity of the sintered samples was measured as a function of temperature from 100 to 1000℃. It shows that the
electrical conductivity of all these samples is higher than 100S/cm, especially the electrical conductivity of Nd_0.6Sr_0.4Co_0.8Fe_0.2O_3-δ
can be up to 600S/cm, and all the samples possess good chemical compatibility with Ce_0.8Gd_0.2O_1.9 at 1200℃ for 24h.

Key words: SOFC, cathode materials, Ln_0.6Sr_0.4Fe_1-χCo_χO_3-δ

CLC Number:

TM911

HUANG Wen-Hua,YANG Jian-Hua,NIE Huai-Wen,LU Zhi-Yi,TU Heng-Yong,WEN Ting-Lian. Synthesis and Characterization of Ln_0.6Sr_0.4Fe_1-χCo_χO_3-σ for ITSOFC[J]. Journal of Inorganic Materials.

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Synthesis and Characterization of Ln_0.6Sr_0.4Fe_1-χCo_χO_3-σ for ITSOFC

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