The perovskite-type LSGM(La0.9Sr0.1Ga0.85Mg0.15O2.875) and Co-doped
LSGMC8.5 (La0.9Sr0.1(Ga0.9Co0.1)Mg0.15O3-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.
XU Guo-Yue
,
CAO Min
,
LIU Bo
,
CHENG Xin
,
ZHOU Jian
. Comparison of LSGM and LSGMC8.5 Synthesized by Advanced Pechini Method[J]. Journal of Inorganic Materials, 2006
, 21(3)
: 612
-618
.
DOI: 10.3724/SP.J.1077.2006.00612
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