ELECTROCHEMICAL SCANNING-TUNNELING-MICROSCOPY OF SILVER ADLAYERS ON IODINE-COATED AU(111) IN PERCHLORIC-ACID SOLUTION

被引：74

作者：

SUGITA, S ^{[1
]}

ABE, T ^{[1
]}

ITAYA, K ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC ENGN,DEPT ENGN SCI,SENDAI,MIYAGI 980,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 34期

关键词：

D O I：

10.1021/j100136a022

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 underpotential deposition (UPD) of Ag on an iodine-coated Au(111) surface has been examined in perchloric acid solution by electrochemical scanning tunneling microscopy (STM). A (5 x square-root 3) structure for the iodine adlayer was observed over wide terraces before initiating the UPD of Ag. Two different structures of (3 x 3) were found for the first UPD layer of Ag. It was expected by STM measurements that the iodine exchanges and exists above the layer of bulk deposited Ag. The structure of iodine on bulk deposited Ag is a simple (square-root 3 x 3 square-root)R30-degrees with no regularly arrayed phase boundaries.

引用

页码：8780 / 8785

页数：6

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