The role of SiO2 and sintering temperature on the grain boundary properties of Ce0.8Sm0.2O2−δ

- Effect of silica addition on the electrical properties of ceria-based electrolytes.
- Influence of silica content and distribution at grain boundaries.
- Sintering temperature and cobalt addition modify the grain boundary behaviour.
- Microstructural and specific parameters are affected by the presence of silica.