In-situ observation of an ordered sulfate adlayer on Au(100) electrodes

被引：35

作者：

Kleinert, M ^{[1
]}

Cuesta, A ^{[1
]}

Kibler, LA ^{[1
]}

Kolb, DM ^{[1
]}

机构：

[1] Univ Ulm, Dept Electrochem, D-89069 Ulm, Germany

来源：

SURFACE SCIENCE | 1999年 / 430卷 / 1-3期

关键词：

Au(100) electrodes; metal-electrolyte interfaces; ordered adlayers; STM; sulfate;

D O I：

10.1016/S0039-6028(99)00347-7

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：

An ordered adlayer of sulfate or bisulfate has been found on the unreconstructed Au(100) surface in 0.1 M H2SO4 by in-situ STM. The ordered adlayer is formed concomitantly with lifting of the (hex)-reconstruction. The new structure consists of sulfate/bisulfate rows that run parallel to the edges of the islands that were created during the (hex)-->(1 x 1) transition. The distance between the adions within the rows is 4.0+/-0.3 Angstrom, and that between rows 10.4+/-0.7 Angstrom, corresponding to a ((1.4+/-0.1)(0) (0)(3.6+/-0.2))superstructure with a surface coverage of about 0.2. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：L521 / L526

页数：6

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