SYNTHESIS OF NANO - SIZED ELECTROL Y TE MATERIALS OF SOFC BY GEL COMBUSTION ROUTE

Rare earth (La, Nd, Gd) doped zirconia were synthesized by gel combustion and co-precipitation route. All compositions were found to stabilise as cubic phase of Zirconia, similar to YSZ, 700 °C. Only Gd doped zirconia retained cubic phase for temperatures upto 1150 °C. Nd and La doped samples exhibited phase separation at 1150 °C. Thermal expansion behaviour of Gd doped zirconia was found to be compatible with that of reported solid oxide fuel cell components.