Single-crystalline CeOHCO 3 rods with an orthorhombic structure have been successfully synthesized by the sonochemical method from aqueous solution containing CeCl 3 and urea. Polycrystalline CeO 2 rods have been prepared by thermal conversion of single-crystalline CeOHCO 3 rods at 500 °C in air. CeOHCO 3 and CeO 2 rods were characterized by x-ray powder diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TG) and differential scanning calorimetric analysis (DSC).
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Qi et al. (2005) studied this question.
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