ATOMIC-LEVEL STRUCTURE OF TIO2(110) AS A FUNCTION OF SURFACE OXYGEN COVERAGE

被引：113

作者：

SANDER, M ^{[1
]}

ENGEL, T ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM,SEATTLE,WA 98195

来源：

SURFACE SCIENCE | 1994年 / 302卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0039-6028(94)91086-3

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 surface structure of TiO2(110) has been investigated using scanning tunneling microscopy. Both (1 x 1) and (1 X 2) regions are observed on the vacuum annealed surface. Further oxygen can be absorbed to create highly elongated nuclei along the [110] direction. These coalesce at saturation coverage to generate a superstructure of 35 Angstrom periodicity with local c(2 X 1) structure rather than a (1 X 1) phase. Oxygen desorption from this saturation phase is highly anisotropic, suggesting that not all oxygens are bound with the same energy. These structural details may shed light on the complex surface chemistry of TiO2.

引用

页码：L263 / L268

页数：6

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