Abstract
Ce1 − xYxO2 − x/2 (YDC) powders were successfully prepared using the polyol method. All of the prepared YDC powders were found to have a single-phase fluorite structure after calcination at 500 °C. It was also determined that nominal dopant concentrations of YDC samples were very close to the values obtained by EDS. The crystallite sizes varied in the range of 11.54–15.76 nm depending on the dopant concentration, and the lattice parameters of YDC samples were compatible with Vegard’s law. YDC pellets with high relative densities were obtained via sintering at 1400 °C at 6 h. The ionic conductivities of YDC pellets increased significantly until x = 0.15, and YDC15 exhibited an ionic conductivity of 2.23 × 10−2 S cm−1 at 800 °C. The ionic conductivity of YDC20 showed a small increase of 12% at the same measurement temperature, reaching 2.5 x 10−2 S cm−1.
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Dönmez, G., Gürkaynak Altınçekiç, T., Sarıboğa, V. et al. Fabrication of YDC electrolytes via polyol method and investigation of their properties for IT-SOFCs. Ionics 29, 2841–2851 (2023). https://doi.org/10.1007/s11581-023-05021-y
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DOI: https://doi.org/10.1007/s11581-023-05021-y