Electronic properties of Pt(100) single crystal surface: experimental study and theoretical calculations

被引：3

作者：

Cholach, AR ^{[1
]}

Tapilin, VM ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2000年 / 158卷 / 01期

关键词：

platinum; low index single crystal surfaces; electron-solid interactions; appearance potential spectroscopy; electron density; excitation spectra calculations;

D O I：

10.1016/S1381-1169(00)00064-9

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 density of vacant states (DVS) of Pt(100)-(1 X 1) single crystal surface is investigated by means of disappearance potential spectroscopy (DAPS). Probing hydrogen adsorption is used in order to suppress the strong diffraction background and to display the desirable features in difference spectra. Local density of states is calculated for the several top layers of semi-infinite Pt(100)-(1 X 1) plane. The spectra features are in a good agreement with the peculiarities of electronic structure that resulted from calculations. The comparison of experimental and theoretical data shows that hydrogen atoms adsorbed on the Pt(100)-(I X 1) surface at 300 K primarily interact with platinum atoms of the second layer. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：181 / 187

页数：7

共 24 条

[1] EXPLICIT, 1ST-PRINCIPLES TIGHT-BINDING THEORY [J].