NA ADSORPTION SITES ON TIO2(110)-1X2 AND ITS 2X2 SUPERLATTICE

被引：40
|
作者：
MURRAY, PW [1 ]
CONDON, NG [1 ]
THORNTON, G [1 ]
机构：
[1] UNIV MANCHESTER,DEPT CHEM,MANCHESTER M13 9PL,LANCS,ENGLAND
来源：
SURFACE SCIENCE | 1995年 / 323卷 / 1-2期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1016/0039-6028(94)00751-9
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 tunnelling microscopy (STM) has been used to investigate the structures formed by a low coverage (< 0.01 ML) of Na on reduced 1 x 2 surfaces of TiO2(110). The STM images recorded at positive sample bias indicate that Na adsorbs in three-fold coordinated sites adjacent to the bridging-O row; forming a p(4 X 2) overlayer. Adsorption on areas of the clean surface which contain the 2 X 2 superlattice suggest that Na adsorbs in a site with a four-fold coordination to oxygen. This is accompanied by Na-induced substrate restructuring.
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页码：L281 / L286
页数：6
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