Atom-resolved EC-STM studies of anion adsorption at well-defined surfaces:: Pd(111) in sulfuric acid solution

被引：47

作者：

Kim, YG ^{[1
]}

Soriaga, JB ^{[1
]}

Vigh, G ^{[1
]}

Soriaga, MP ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2000年 / 227卷 / 02期

基金：

美国国家科学基金会;

关键词：

electrochemical scanning tunneling microscopy; anion adsorption; well-defined Pd electrode surfaces; the electrode-electrolyte interface;

D O I：

10.1006/jcis.2000.6889

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 interfacial structure of well-defined Pd(lll) single-crystal electrodes in 0.05 M H2SO4 has been studied by electrochemical scanning tunneling microscopy (EC-STM) at potentials within the electrical double-layer region. Experiments with (virtually) atomically sharp STM tips yielded images of such quality that the intermolecular and intramolecular structures of the highly ordered compact layer could actually be resolved on an atomic scale. Fundamental concepts in inorganic chemistry have been invoked to postulate that SO42-, H3O+, and H2O are the most likely constituents of the compact layer. A structural model of such a compact layer is presented. (C) 2000 Academic Press.

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页码：505 / 509

页数：5

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