A facile and quick solvothermal synthesis of 3D microflower CeO2 and Gd:CeO2 under subcritical and supercritical conditions for catalytic applications
Date
2011
Authors
Kempaiah, D.M.
Yin, S.
Sato, T.
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Journal article
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CrystEngComm, 2011; 13(3):741-746
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Abstract
A facile and quick synthesis via solvothermal reaction under subcritical and supercritical temperatures using ethylene glycol media was developed to synthesize three dimensional (3D) flower-like CeO2 and 5 mol-% Gd3+-doped CeO2 (Gd:CeO2). The flower-like particles are 5-10 mu m in diameter and are actually constructed by the arrangement of nanopetals 20-40 nm in diameter. Flower-like CeO2 and Gd:CeO2 exhibited interesting UV-shielding and visiblelight scattering properties and higher CO oxidation catalytic activity compared to commercial CeO2 powders. These materials could find potential applications as UV blocking materials and CO removal catalysts.
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Copyright 2011 Royal Society of Chemistry