Characterization of Sm and Nd Co-Doped Ceria-Based Electrolyte Materials

• Authors: A. Arabacı , Ö. Serin , V. Sarıboğa , M. Öksüzömer
• Languages of publication: EN

Abstracts

EN

Ceria doped with trivalent cations, such as rare earth elements, is considered to be one of the most promising electrolyte materials for intermediate-temperature solid oxide fuel cells, which are an alternative to the commercially used ytrium-stabilized zirconia (YSZ). The aim of this work research is to synthesize Sm and Nd co-doped ceria materials using the Pechini method as solid electrolyte for intermediate temperature solid oxide fuel cell. Ce_{0.75}Sm_{0.20}Nd_{0.05}O_{1.875}, Ce_{0.65}Sm_{0.20}Nd_{0.15}O_{1.825}, and Ce_{0.60}Sm_{0.20}Nd_{0.20}O_{1.80} have been chosen as target of this study. Microstructural and physical properties of the samples were characterized with X-ray diffraction, scanning electron microscopy, thermogravimetric analysis methods. The results of the thermogravimetry/differential thermal analysis and X-ray diffraction indicated that a single-phase fluorite structure formed at the relatively low calcination temperature of 600°C for 3 h. The two-probe ac impedance spectroscopy was used to study the total ionic conductivity of doped and co-doped ceria ceramics at 800°C. The Ce_{0.60}Sm_{0.20}Nd_{0.20}O_{1.80} sample showed maximum ionic conductivity.

Keywords

EN

88.30.pn

Discipline

• 88.30.pn: Solid oxide fuel cells

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 4
• Pages: 524-527

Dates

published

2016-04

Contributors

author

A. Arabacı

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

author

Ö. Serin

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

author

V. Sarıboğa

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

author

M. Öksüzömer

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

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Identifiers

DOI

10.12693/APhysPolA.129.524