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Preparation and Properties of CDC-LSCMCo Composite Anodes for IT-SOFC
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    Abstract:

    IT-SOFC composite anode material Ce0.8Ca0.2O2-La0.7Sr0.3Cr0.5Mn0.5-xCoxO3-δ (CDC-LSCMCo) was synthesized in one-step by glycine nitrate process (GNP). The results from X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) indicate that the composite anode powder with single fluorite-perovskite phase and small grain size (about 1 μm) was obtained after sintering the predecessor at 1350 oC for 5 h. Conductivity testing show that the conductivity of CDC-LSCMCo increases with the Co content increasing when the temperature is above 750 oC; while at 800 oC the conductivity is 10.5 S·cm-1 and 0.7 S·cm-1 in air and H2 atmosphere, respectively. Good chemical-thermal compatibility between CDC-LSCMCo and La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) was confirmed via XRD and SEM. CDC-LSCMCo is a promising anode material of SOFC for its excellent properties at intermediate temperature.

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[Zhang Xumin, Chen Xiuhua, Xiang Jinzhong, Ma Wenhui, Yu Jie. Preparation and Properties of CDC-LSCMCo Composite Anodes for IT-SOFC[J]. Rare Metal Materials and Engineering,2010,39(1):177~181.]
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  • Received:January 15,2009
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