Structure and Electrical Properties of Pr and Sm Doped CeO2 and Ce6MoO15 Based Solid Electrolytes

Chem. J. Chinese Universities

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Structure and Electrical Properties of Pr and Sm Doped CeO₂ and Ce₆MoO₁₅ Based Solid Electrolytes

ZHOU De-Feng¹*, YE Jun-Feng¹, LI Dong-Feng¹, JIANG Xin-Hua¹, MENG Jian²

1. School of Biological Engineering, Changchun University of Technology, Changchun 130012, China;
2. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Received:2007-06-25 Revised:1900-01-01 Online:2007-11-10 Published:2007-11-10
Contact: ZHOU De-Feng

Abstract

Abstract: Sm and Pr doped CeO₂ and Ce₆MoO₁₅ based materials were synthesized by sol-gel method. The structure of the powders were characterized by X-ray diffraction(XRD), Raman spectra, field emission scanning electron microscopy(FE-SEM) and the electrical conductivity of the samples was investigated by AC impedance spectroscopy. By comparing the structure and electrical properties of different systems, it could be concluded that the electrical property of Ce₆MoO₁₅ based system is better than that of CeO₂ system. The added Mo element resulted in the increase of gain size and improved the grain boundary conductivity notably below 600 ℃, while the Pr dopant induced the smaller grain size and improved the grain boundary conductivity of the materials.

Key words: Solid electrolyte, Conductivity, Grain boundary

CLC Number:

O614.33

TrendMD:

ZHOU De-Feng¹*, YE Jun-Feng¹, LI Dong-Feng¹, JIANG Xin-Hua¹, MENG Jian². Structure and Electrical Properties of Pr and Sm Doped CeO₂ and Ce₆MoO₁₅ Based Solid Electrolytes[J]. Chem. J. Chinese Universities, doi: .

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Structure and Electrical Properties of Pr and Sm Doped CeO₂ and Ce₆MoO₁₅ Based Solid Electrolytes

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