LNF SOFC cathodes with active layer using Pr6O11 or Pr-doped CeO2

We also investigated the reactions at the interfaces in the sintering process. X-ray diffraction (XRD) analysis revealed that the Pr6O11 reacted easily with zirconia, and Pr2Zr2O7 was produced at 1000 °C or above. It was suggested that the sintering temperature of the cathodes with the active layer could be increased to around 1000 °C without any reaction at the interface between Pr6O11 and other materials.