EXAFS study of SrCeO3 doped with Yb

被引：6

作者：

Arita, Y

Yamasaki, S

Matsui, T

Harami, T

Kobayashi, K

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Quantum Engn, Nagoya, Aichi 4648603, Japan

[2] Japan Atom Energy Res Inst, Dept Synchrotron Radiat, Facil Project, Kamigori, Hyogo 6781298, Japan

[3] KEK, PF, High Energy Accelerator Res Org, Photon Factory, Tsukuba, Ibaraki 3050801, Japan

来源：

SOLID STATE IONICS | 1999年 / 121卷 / 1-4期

关键词：

EXAFS; local structure; perovskite; proton conductor; SrCeO3;

D O I：

10.1016/S0167-2738(99)00040-5

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：

The local structures around Sr, Ce and Yb such as the M-O and M-M (M = Sr, Ce and Yb) interatomic distances in proton conductive Sr(Ce1-xYbx)O-3 (x = 0-0.2) were studied by means of extended X-ray absorption fine structure (EXAFS) spectrometry. The Sr-Ce/Yb, Ce-O and Yb-O interatomic distances of Sr(Ce1-xYbx)O-3 are almost constant in contrast to the decrease of its lattice constant. These results suggest that the oxygen vacancies are not located preferentially around either host Ce ions or dopant Yb ions. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：225 / 228

页数：4

共 8 条

[1] PROTON CONDUCTION IN SINTERED OXIDES BASED ON BACEO3 [J].