Synthesis and characterization of nanosized ceria powders by microwave-hydrothermal method

被引：50

作者：

Corradi, AB

Bondioli, FB

Ferrari, AM

Manfredini, T

机构：

[1] Univ Modena & Reggio Emilia, Dipartimento Ingn Mat & Ambiente, I-41100 Modena, Italy

[2] Dipartimento Sci & Metodi Ingn, I-42100 Reggio Emilia, Italy

来源：

MATERIALS RESEARCH BULLETIN | 2006年 / 41卷 / 01期

关键词：

nanostructures; oxides; chemical synthesis; X-ray diffraction;

D O I：

10.1016/j.materresbull.2005.07.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline ceria powders (CeO2) have been prepared by adding NaOH to a cerium ammonium nitrate aqueous solution under microwave-hydrothermal conditions. In particular the effect of the synthesis conditions (time, pressure and concentration of both the precursor and the precipitant agent solutions) on the physical properties of the crystals have been evaluated. Microwave-hydrothermal treatment of 5 min at 13.4 atm allows to obtain almost crystallized powders (amorphous phase 4%) as underlined by Rietveld-reference intensity ratio (RIR) results. (C) 2005 Elsevier Ltd. All rights reserved.

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页码：38 / 44

页数：7

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