Synthesis and Characterization of Gd2O3 Doped CeO2 Nanopowders by a Glycothermal Process

Abstract:

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Gd2O3 doped CeO2 nanopowders were prepared under high temperature and pressure conditions by precipitation from metal nitrates with aqueous ammonium hydroxide. Spherical shape Gd2O3 doped CeO2 nanopowders were obtained By a reaction at the temperature range of 200°C – 230°C for 6 h. The average size and size distribution of the synthesized particles were below 10 nm and narrow, respectively. The XRD diffraction pattern shows that the synthesized powders were crystalline. This study has shown that the synthesis of Gd2O3 doped CeO2 nanopowders is possible under glycothermal conditions in ethylene glycol solution. The effects of synthesis parameters, such as the solvent ratio of starting solution, pH of starting solution, reaction temperature and time, are discussed.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Edited by:

Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado

Pages:

1140-1145

DOI:

10.4028/www.scientific.net/DDF.297-301.1140

Citation:

H. J. Kim et al., "Synthesis and Characterization of Gd2O3 Doped CeO2 Nanopowders by a Glycothermal Process", Defect and Diffusion Forum, Vols. 297-301, pp. 1140-1145, 2010

Online since:

April 2010

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$35.00

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