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Citation: He Zhiqi, Jiang Kai, Meng Jian, Ren Yufang, Su Qiang. Synthesis and Ionic Conductivity of BaCe_1-xRE_xO_3-0.5x Prepared by Sol-gel Method[J]. Chinese Journal of Applied Chemistry, ;1998, 15(3): 22-25. shu

Synthesis and Ionic Conductivity of BaCe_1-xRE_xO_3-0.5x Prepared by Sol-gel Method

Open Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022

Received Date: 11 November 1997
Revised Date: 12 March 1998

A series of perovskite complex oxides BaCe_1-xRE_xO_3-0.5x (RE=La,Nd,Sm,Eu,Gd,Dy,Ho,Er and Y) were synthesized by sol-gel method. The structure and synthetic process were studied by XRD, TGA and DTA. The ionic conductivities were measured at diffe-rent temperature by ac impedance method. The effects of RE³⁺ dopant on the conductivities of BaCeO₃ were discussed. The synthetic temperature by sol-gel method was 600~800 ℃ lower than that by traditional ceramic method. The ionic conductivities of BaCeO₃ doped with RE³⁺ were 10~40 times as much as that of pure BaCeO₃.
- BaCeO₃,
- rare earth complex oxide,
- sol-gel method,
- ionic conductivity,
- ac impedance
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Synthesis and Ionic Conductivity of BaCe1-xRExO3-0.5x Prepared by Sol-gel Method

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Synthesis and Ionic Conductivity of BaCe_1-xRE_xO_3-0.5x Prepared by Sol-gel Method