In-situ electrochemical atomic force microscopy on Au(100) in room temperature ionic liquid:: 1-Ethyl-3-methyl-imidazolium bis(trifluoromethanesulfonyl) imide

被引：7

作者：

Hirai, N ^{[1
]}

Yokogawa, T ^{[1
]}

Tanaka, T ^{[1
]}

机构：

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

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 3B期

关键词：

electrochemical atomic force microscopy; room temperature molten salt; gold single crystal; surface structure; atomic resolution; surface morphology; nanoisland decay; cyclic voltammogram;

D O I：

10.1143/JJAP.45.2295

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A Au(100) single crystal surface in 1-ethyl-3-methyl-imidazolium bis(trifluoromethanesulfonyl) imide (EMImTFSI) was investigated by means of in-situ electrochemical atomic force microscopy (EC-AFM). High-resolution EC-AFM images with fourfold symmetry and all interatomic distance of 0.3 nm, corresponding to a bare and unreconstructed Au(100)-(1 x 1) Structure, were observed in the potential range from -0.9 to 0.3V vs Ag/Ag+ in 1-ethyl-3-methyl-imidazolium tetrafluoroborate (EMImBF(4)). The top layer of,I multilayered island on Au(100) in EMImTFSI collapsed at a constant decay rate and the decay rate had a positive potential dependence when the Au(100) electrode was kept at any potential between -0.6 and 0.9 V vs Ag/Ag+ in EMImBF(4). It was also found that the decay rate in EMImTFSI was higher than that ill EMImBF(4) in the potential region from 0.1 to 0.9 V vs Fc/Fc(+) electrode.

引用

页码：2295 / 2297

页数：3

共 7 条

[1] Oxidation of N,N,N′,N′-tetraalkyl-para-phenylenediamines in a series of room temperature ionic liquids incorporating the bis(trifluoromethylsulfonyl)imide anion [J].