SYNTHESIS AND MORPHOLOGICAL CONTROL OF MONODISPERSED MICROSIZED CERIA PARTICLES

S. Yin (), Y. Minamidate and T. Sato
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S. Yin: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
Y. Minamidate: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
T. Sato: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan

Surface Review and Letters (SRL), 2010, vol. 17, issue 02, 147-152

Abstract: The morphological control of crystalline cerium oxide particles was realized by homogeneous precipitation process followed by calcination in air at 400°C. The effects of room temperature pre-aging time on the morphologies of final products were investigated. Monodispersed rod-like cerium carbonate precursor was produced at 70°C for 2 h using the solution without pre-aging treatment. In contrast, monodispersed spherical precursor and plate-like precursor were obtained under the same conditions after pre-aging the solution at 25°C for 72 and 144 h, respectively. Ceria particles with similar morphologies and particle size to those of carbonate precursor could be obtained after calcination in air at 400°C. The monodispersed spherical, rod-like, and plate-like cerium oxide particles were successfully synthesized.

Keywords: Morphological control; monodispersed particles; mild solution process (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X10013552

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