Room temperature co-precipitation of nanocrystalline CeO2 and Ce0.8Gd0.2O1.9-δ powder

被引：105

作者：

Godinho, M. J.

Goncalves, R. F.

Santos, L. P. S.

Varela, J. A.

Longo, E.

Leite, E. R.

机构：

[1] Univ Fed Sao Carlos, Dept Chem, LIEC, Ctr Multidisciplinar Desenvolvimento Mat Ceram, BR-13565905 Sao Carlos, SP, Brazil

[2] UNESP, LIEC Inst Chem, Ctr Multidisciplinar Desenvolvimento Mat Ceram, BR-14801970 Araraquara, SP, Brazil

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 8-9期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/j.matlet.2006.07.152

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes a simple method to co-precipitate CeO2 and Ce0.8Gd0.2O1.9-delta with ammonium hydroxide from solvents such as: water, ethylene glycol, ethyl alcohol and isopropyl alcohol. Characterization by Raman spectroscopy and XRD evidenced the formation of a solid solution of gadolinium-doped ceria at room temperature. Nanometric particles with crystallite size of 3.1 nm were obtained during synthesis using ethyl alcohol as solvent. This is a promising result compared with those mentioned in the literature, in which the smallest crystallite size reported was, 6.5 nm. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1904 / 1907

页数：4

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