Abstract
Single-crystalline cerium carbonate hydroxide (Ce(CO 3)(OH)) with dendrite morphologies have been successfully synthesized by hydrothermal method at 150 °C using Ce(NO 3) 3·6H 2O as the cerium source, aqueous carbamide as both an alkaline and carbon source and poly(vinyl pyrrolidone) (PVP) as surfactant. Ceria (CeO 2) with dendrite morphologies have been fabricated by a thermal decomposition–oxidation process at 500 °C for 6 h using single-crystalline Ce(CO 3)(OH) dendrites as the precursor. The dendrite morphologies of Ce(CO 3)(OH) was sustained after thermal decomposition–oxidation to CeO 2. The as-prepared products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), field-emission scanning electron microscopy (FE-SEM), and thermogravimetric analysis (TG).
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