X-ray surface diffraction of metal deposits at metal/liquid interfaces - Part I: Copper deposit on Au(100)

被引：3

作者：

Cappadonia, M ^{[1
]}

Robinson, KM ^{[1
]}

Schmidberger, J ^{[1
]}

Stimming, U ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Energieverfahrenstech, D-52452 Julich, Germany

来源：

SURFACE REVIEW AND LETTERS | 1997年 / 4卷 / 06期

关键词：

D O I：

10.1142/S0218625X97001498

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：

In this work the Cu deposition on Au(100) in aqueous perchloric acid has been investigated by in situ X-ray surface diffraction (XRSD). The Cu deposition reaction on gold single crystals exhibits an underpotential deposition (UPD) whereby a fraction of a monolayer is formed. The XRSD measurements show that the Cu UPD layer has a primitive (1 x 1) structure and that the adsorbed Cu species sit in fourfold hollow sites with a vertical distance between the Cu adlayer and the gold surface of 1.4 Angstrom. The results are discussed in consideration of STM,(1) EXAFS(2) and XSW(3) experiments.

引用

页码：1173 / 1178

页数：6

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