Comparison of LSGM and LSGMC8.5 Synthesized by Advanced Pechini Method

doi:10.3724/SP.J.1077.2006.00612

Abstract

Abstract: The perovskite-type LSGM(La_0.9Sr_0.1Ga_0.85Mg_0.15O_2.875) and Co-doped
LSGMC_8.5 (La_0.9Sr_0.1(Ga_0.9Co_0.1)Mg_0.15O_3-δ) were synthesized by the advanced Pechini method. Their properties were compared by the analysis of XRD, DTA-TG, impedance spectra, conductivity and density. It showed that Co doping decreased the forming temperature of cubic perovskite structure from 1400℃ to 1300℃, and increased the fractional density from 95% to 99%. The conductivity of the LSGMC8.5 sintered at 1400℃ for 6h is 5.38×10^-2S/cm. So the Co-doped LSGMC8.5 is more suitable for IT-SOFC.

Key words: advanced pechini method, fuel cell, Co-doped, LSGM

CLC Number:

TM911

XU Guo-Yue,CAO Min,LIU Bo,CHENG Xin,ZHOU Jian. Comparison of LSGM and LSGMC_8.5 Synthesized by Advanced Pechini Method[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2006.00612.

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Comparison of LSGM and LSGMC_8.5 Synthesized by Advanced Pechini Method

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