EXAFS study of nanocrystalline CeO2 samples prepared by sol-gel and ball-milling routes

被引：16
|
作者：
Chadwick, Alan V. [1 ]
Savin, Shelley L. P. [1 ]
机构：
[1] Univ Kent, Sch Phys Sci, Canterbury CT2 7NH, Kent, England
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 488卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
Nanocrystals; Ceria; Fuel cells; XAS; EXAFS; NANOSTRUCTURED MATERIALS; THIN-FILMS; X-RAY; MICROSTRUCTURE; CONDUCTIVITY; OXIDES;
D O I：
10.1016/j.jallcom.2006.10.164
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This paper reports a study of nanocrystalline ceria prepared by both sol-gel and ball-milling methods. EXAFS measurements show that the ball-milled samples contain a considerable fraction of amorphous material, whereas there is a high degree of order in the sol-gel samples of similar grain size. In addition, a study has been made of the effect of silica and alumina as effective additives to reduce the grain growth of nanocrystalline ceria at elevated temperatures. (C) 2006 Elsevier B.V. All rights reserved.
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页码：1 / 4
页数：4
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