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论文类型：期刊论文

发表时间：2012-09-01

发表刊物：MATERIALS LETTERS

收录刊物：SCIE、EI、Scopus

卷号：82

页面范围：199-201

ISSN号：0167-577X

关键字：CeO2; Microstructure; Crystal growth; Solvent assisted method

摘要：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.