Synthesis of Ce0.75Zr0.25O2 at 100 °C

A simple gel to crystal conversion route has been used for the preparation of Ce0.75Zr0.25O2 phase at 80–100 °C under refluxing conditions. Freshly prepared metal hydroxides gel from cerium and zirconium salt solution is allowed to crystallize under refluxing and stirring conditions for 4–10 h. Formation of nano crystallites of Ce0.75Zr0.25O2 is confirmed by X-ray diffraction (XRD). Transmission electron microscopy (TEM) investigations revealed the average particle size of these powders to be 5 nm.