Anisotropic structure analysis for Mo oxides on TiO2(110) single crystal surface by polarization-dependent total-reflection fluorescence EXAFS

被引：19

作者：

Chun, WJ

Asakura, K

Iwasawa, Y

机构：

[1] Univ Tokyo, Grad Sch Sci, Dept Chem, Bunkyo Ku, Tokyo 0033113, Japan

[2] Univ Tokyo, Grad Sch Sci, Res Ctr Spectrochem, Bunkyo Ku, Tokyo 1130033, Japan

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 288卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(98)00373-X

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 carried out the three-dimensional structure analysis for Mo oxides on TiO2(110) using total-reflection fluorescence EXAFS (extended X-ray absorption fine structure) in three different directions of the polarized vector of the incident X-rays parallel to the [1(1) over bar 0], [001] and [110] directions of the TiO2(110) plane. It is concluded that the Mo dimer species are selectively formed on the surface, with the Mo-Mo bond (0.335 nm) parallel to the [1(1) over bar 0] direction and also with Mo-Ti(0.296 nm) and Mo-O(0.220 nm) interfacial bonds. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：868 / 872

页数：5

共 34 条

[1] IN-SITU ASYMMETRIC STRUCTURE-ANALYSIS OF PT CLUSTERS ON ALPHA-AL2O3(0001) IN H-2 REDUCTION AND NO ADSORPTION [J].