Parameters affecting on the ionic conductivity of solid electrolytes based on cerium dioxide

Sudzhanskaya I.V., Lebedeva Yu.E., Vaganova M.L., Shchegoleva N.E.
UDC
544.6.018.42-16
DOI
10.18577/2307-6046-2025-0-1-60-73
Article PDF (Russian) (740.13 KB)
How to cite
Sudzhanskaya I.V., Lebedeva Yu.E., Vaganova M.L., Shchegoleva N.E. Parameters affecting on the ionic conductivity of solid electrolytes based on cerium dioxide // Proceedings of VIAM. 2025. No. 1. DOI: 10.18577/2307-6046-2025-0-1-60-73. URL: https://test.viam.ru/en/journal/2025/1/6
Keywords
solid electrolytes, cerium dioxide, ionic conductivity, activation energy, ion radius, blocking effect
Abstract

Ceramic materials based on cerium dioxide are used as solid electrolytes of solid oxide fuel cells at temperatures below 600 °C. Based on the analysis of the results of existing world studies, it is shown that the ionic conductivity of doped CeO2 depends on the synthesis method, sintering temperature and time, type and concentration of alloying elements, grain size, grain boundaries and etc. Recommendations are proposed for obtaining doped cerium dioxide with an increased ionic conductivity value in the medium-temperature range for the production of solid electrolytes.

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