In situ STM and STS study of NixAl1-x alloy formation on Au(111) by electrodeposition from a molten salt electrolyte

被引：40

作者：

Zell, CA ^{[1
]}

Freyland, W ^{[1
]}

机构：

[1] Univ Karlsruhe, TH, Inst Chem Phys, D-76128 Karlsruhe, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 337卷 / 4-6期

关键词：

D O I：

10.1016/S0009-2614(01)00214-7

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：

The electrodeposition of Ni, Ni,AII, alloys and Al from the Lewis acid room temperature molten salt electrolyte AlCl3/1-methyl-3-butylimidazolium chloride on Au(111) has been studied by STM and voltage tunneling spectroscopy. Layer by layer growth of Ni starts already in the underpotential range, while below the equilibrium potential a columnar growth of 3D Ni clusters along the step edges is observed. At potentials below -0.2 V vs Ni/Ni(II) the complete Au surface is covered with a 3D deposit due to Ni and Al codeposition. The tunnel barriers phi. which were determined at the electrode/electrolyte interface, exhibit qualitatively the same relative reduction as for the vacuum interface. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：293 / 298

页数：6

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