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Indexed by:期刊论文

Date of Publication:2012-09-01

Journal:MATERIALS LETTERS

Included Journals:SCIE、EI、Scopus

Volume:82

Page Number:199-201

ISSN No.:0167-577X

Key Words:CeO2; Microstructure; Crystal growth; Solvent assisted method

Abstract:Various morphologies of CeO2 micro/nanostructures such as sphere, rod and cluster have been successfully synthesized by thermal conversion of cerium carbonate hydroxide (CeOHCO3) precursors which were prepared by a hydrolysis process followed by solvothermal growth without using any template or surfactant. The synthesizing mechanism and the morphological evolution of CeOHCO3 and CeO2 were proposed. It was found that the base reactant concentration and the composition of the solvent mixture were the critic factors in determining the shape and size of CeOHCO3 precursors. The shape and size of the CeO2 could be controlled easily by adjusting the concentration and the variety of solvent. The as-prepared CeO2 might have potential applications in phosphor and catalysis materials. (C) 2012 Elsevier B.V. All rights reserved.