Scanning tunneling microscopy study of the anatase (100) surface

被引：74

作者：

Ruzycki, N

Herman, GS

Boatner, LA

Diebold, U ^{[1
]}

机构：

[1] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA

[2] Hewlett Packard Corp, Corvallis, OR 97330 USA

[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

SURFACE SCIENCE | 2003年 / 529卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

titanium oxide; scanning tunneling microscopy; surface relaxation and reconstruction; surface structure; morphology; roughness; and topography; low index single crystal surfaces;

D O I：

10.1016/S0039-6028(03)00117-1

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：

Scanning tunneling microscopy (STM) has been used to investigate the structure of the TiO2 anatase (1 0 0) surface. Natural single crystals of anatase were employed; and after several cycles of sputtering and annealing at T = 450 degreesC, the TiO2(1 0 0) surface was free of impurities, and reconstructed to a (1 x n) termination. No evidence for point defects was found in the atomic resolution STM images. The STM results were accounted for on the basis of a surface structure model in which (1 0 1)-oriented microfacets run along the anatase [0 1 0] direction. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：L239 / L244

页数：6

共 27 条

[1] Active site density and reactivity for the photocatalytic dehydrogenation of 2-propanol an TiO2 (110) [J].