microwave induced combustion synthesis of nano- codoped ceria and their electrical properties

in this work, ce0.75gd0.1ca0.15o1.8 nanopowders are successfully synthesized by a glycine-nitrate combustionprocess under the microwave irradiation. then calcination was carried out at 700 °c. calcined powdersidentified by room temperature x-ray diffraction were single phase and had a crystallite size between 16 to 24nm (based on schererr formula). scanning electron microscopy (sem) was employed to characterize themorphology of powder. we also studied the effect of fuel to nitrate ratio on the amount of released energyand on the crystallite size and compositional homogeneity of the resulting powders. finally electricalproperties of obtained powder were studied.