High-temperature neutron powder diffraction study of cerium dioxide CeO2 up to 1770 K

被引：33

作者：

Yashima, M

Ishimura, D

Yamaguchi, Y

Ohoyama, K

Kawachi, K

机构：

[1] Interdisciplinary Grad Sch Sci & Engn, Dept Mat Sci & Engn, Tokyo Inst Technol, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[2] Tohoku Univ, Mat Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Daiichi Kigenso Kagaku Kogyo, Suminoe Ku, Osaka 5590025, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 372卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(03)00507-4

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：

We have investigated the temperature dependence of unit-cell and structural parameters of ceria (cerium dioxide, CeO2) from room temperature to 1770 K by neutron powder diffraction and the Rietveld method. The unit-cell parameter increases continuously with temperature. It was confirmed that the Debye-Waller factor of oxygen B(O) is larger than that of cerium B(Ce) at any temperature from room temperature to 1770 K. Both B(O) and B(Ce) increase with an increase of temperature. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：784 / 787

页数：4

共 18 条

[1]

Bouwmeester H.J.M., 1996, Membrane Science and Technology, V4, P435

[2] DEFECT CHARACTERIZATION IN CEO2-X AT ELEVATED-TEMPERATURES .2. NEUTRON-DIFFRACTION [J].