Synthesis and Characterization of Samarium-Doped CeO₂ Powders as a Solid Electrolyte by Using Pechini Method

• Authors: A. Arabacı
• Languages of publication: EN

Abstracts

EN

In the trivalent rare-earth doped ceria electrolyte for SOFC applications, the highest conductivities are observed for Ce_{1-x}Sm_{x}O_{2-x/2} and Ce_{1-x}Gd_{x}O_{2-x/2}. In this study, fully dense samarium doped ceria ceramics (SDC), Sm_{x}Ce_{1-x}O_{2-x/2} (x=0.1) have been synthesized via Pechini method. The phase identification, microstructural properties and bond structure of SDC samples were studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier Transform- Infrared Spectroscopy (FTIR). The XRD results indicate that a single-phase fluorite structure has formed at relatively low calcination temperature of 500°C. This method yields high purity ultrafine powders which can form dense electrolyte at relatively low sintering temperatures. The SEM results show that a complete solid solution between ceria and samarium was obtained at the sintering temperature of 1400°C.

Keywords

EN

88.30.M-

Discipline

• 88.30.M-: Fuel cell component materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 888-890

Dates

published

2015-04

Contributors

author

A. Arabacı

• Istanbul University, Faculty of Engineering, Department of Metallurgical Engineering, Avcilar 34320, Istanbul, Turkey

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Identifiers

DOI

10.12693/APhysPolA.127.888