| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1259423 | Journal of Rare Earths | 2010 | 4 Pages |
Ce0.8Sm0.2O1.9 (SDC) nanopowders were synthesized by an acrylamide polymerization process. The XRD results showed that SDC powders prepared at 700 °C possessed a cubic fluorite structure. Transmission electron microscopy (TEM) indicated that the particle sizes of powders were in the range of 10–15 nm. A 98.3% of theoretical density was obtained when the SDC pellets were sintered at 1350 °C for 5 h, indicating that the powders had good sinterability. The conductivity of the sintered SDC ceramics was 0.019 S/cm at 600 °C and the activation energy was only 0.697 eV. Furthermore, a unit cell was fabricated from the powders and the maximum power density of 0.169 W/cm2 was achieved at 700 °C with humidified hydrogen as the fuel and air as the oxidant.
