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Vol. 26 No. 6 (2014): Vol 26 Issue 6

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Synthesis and Characterization of Ce0.8Y0.2-xCaxO2-d as Electrolyte for Solid Oxide Fuel Cells

https://doi.org/10.14233/ajchem.2014.17317
Changan Tian
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Jie Yang
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Minghua Li
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Qiyi Yin
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Bifa Ji
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Hong Sun
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Jinsong Xie
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China
Jinjin Ma
Department of Chemistry and Materials Engineering, Hefei University, Hefei 230601, P.R. China

Corresponding Author(s) : Changan Tian

tca2204@126.com

Asian Journal of Chemistry, Vol. 26 No. 6 (2014): Vol 26 Issue 6

Abstract

In this study, ultrafine Ce0.8Y0.2-xCaxO2-d (x = 0 to 0.1) powders have been successfully prepared by the sol-gel method. The samples were characterized by TG-DSC, XRD and AC impedance. Experimental results indicated that highly phase-pure cubic fluorite electrolyte Ce0.8Y0.2-xCaxO2-d powders were obtained. The Ce0.8Y0.2-xCaxO2-d series electrolytes have higher relatively dense over 96 % can obtained after sintered at 1400 ºC. Among all the samples, Ce0.8Y0.1Ca0.1O1.85 shows excellent ionic conductivity of 0.041 S/cm measured at 800 ºC and lower conductive activation energy of 0.89 eV.

Keywords

CeO2 Electrolyte Sol-gel Solid oxide fuel cells
Tian, C., Yang, J., Li, M., Yin, Q., Ji, B., Sun, H., … Ma, J. (2014). Synthesis and Characterization of Ce0.8Y0.2-xCaxO2-d as Electrolyte for Solid Oxide Fuel Cells. Asian Journal of Chemistry, 26(6), 1658–1660. https://doi.org/10.14233/ajchem.2014.17317
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