Decay of nano-islands located on Au(100) electrode in room temperature molten salt (EMImBF4)

被引：8

作者：

Kubo, K ^{[1
]}

Hirai, N ^{[1
]}

Tanaka, T ^{[1
]}

Hara, S ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Mat Sci & Proc, Suita, Osaka 5650871, Japan

来源：

SURFACE SCIENCE | 2004年 / 565卷 / 01期

关键词：

solid-liquid interfaces; gold; surface structure; morphology; roughness; and topography; electrochemical methods; atomic force microscopy;

D O I：

10.1016/j.susc.2004.03.069

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 behaviour of nano-islands located on an Au(1 0 0) single crystal surface in contact with a room temperature molten salt, that is, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMImBF(4)), has been investigated using electrochemical atomic force microscopy (EC-AFM) under potential control. It was found from the in situ EC-AFM observations that a nano-island located on an Au(1 0 0) electrode collapses in EMImBF4 in the potential range between -1.05 and 0.2 V (vs. Ag/Ag+ in EMImBF(4)). It was also found that the nano-islands decay faster when the Au(1 0 0) electrode potential is more positive. These in situ EC-AFM observations reveal that the behaviour of the nano-island in the EMImBF(4) shown above is quite similar to that observed in a sulfuric acid aqueous solution. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：L271 / L276

页数：6

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