Microwave-assisted synthesis of ceria nanoparticles

被引：94

作者：

Yang, HM ^{[1
]}

Huang, CH ^{[1
]}

Tang, AD ^{[1
]}

Zhang, XC ^{[1
]}

Yang, WG ^{[1
]}

机构：

[1] Cent S Univ, Sch Resources Proc & Bioengn, Dept Inorgan Mat, Changsha 410083, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 10期

基金：

中国国家自然科学基金;

关键词：

inorganic compounds; nanostructure; crystal growth; X-ray diffraction;

D O I：

10.1016/j.materresbull.2005.05.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline ceria (CeO2) particles have been successfully prepared by microwave-assisted heating technique from an aqueous solution containing ammonium Ce(IV) nitrate and sodium hydroxide. Further thermal treatment of the as-prepared powder at 500 degrees C resulted in the formation of the well-crystallized CeO2 nanoparticles with an average crystal size of about 8 nm, varying with the heating temperature. The as-prepared powder and the CeO2 nanoparticles were examined using X-ray diffraction (XRD) and transmission electron microscope (TEM) techniques. It was found that the morphologies of the synthesized powder show from rod-like for the as-prepared sample to sphere-like for the heat-treated nanoparticles. Mechanism of CeO2 nanocrystallite growth during annealing is primarily investigated. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1690 / 1695

页数：6

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