A combined experimental and theoretical study of the generation of palladium clusters on Au(111) with a scanning tunnelling microscope

被引：17

作者：

Del Pópolo, MG

Leiva, EPM

Kleine, H

Meier, J

Stimming, U

Mariscal, M

Schmickler, W ^{[1
]}

机构：

[1] Univ Ulm, Abt Elektrochem, D-89069 Ulm, Germany

[2] Tech Univ Munich, Phys Dept E19, D-85748 Garching, Germany

[3] Univ Nacl Cordoba, Fac Ciencias Quim, Unidad Matemat & Fis, RA-5000 Cordoba, Argentina

来源：

ELECTROCHIMICA ACTA | 2003年 / 48卷 / 09期

关键词：

palladium; Au(111); scanning tunnelling microscope; computer simulations;

D O I：

10.1016/S0013-4686(02)00837-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Palladium clusters have been deposited on the surface of a Au(111) electrode with the tip of a scanning tunnelling microscope. The distance over which the tip was moved towards the surface has a decisive influence on the properties of the clusters: the larger this distance, the larger the generated clusters, and the more stable they are. These findings are supported by computer simulations, which further suggest that the larger clusters contain a sizable amount of gold, which enhances their stability. Dissolution of the clusters occurs from the edges rather than layer by layer. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1287 / 1294

页数：8

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