Vibrational spectroscopy of imperfect CO/Pd(111) surfaces obtained by adsorption between 150 and 230 K

被引：48

作者：

Bourguignon, B ^{[1
]}

Carrez, S ^{[1
]}

Dragnea, B ^{[1
]}

Dubost, H ^{[1
]}

机构：

[1] Univ Paris Sud, CNRS, Photophys Mol Lab, F-91405 Orsay, France

来源：

SURFACE SCIENCE | 1998年 / 418卷 / 01期

关键词：

sum frequency generation; IR absorption spectroscopy; chemisorption; palladium; carbon monoxide; low index single crystal surfaces; surface defects; solid gas interface;

D O I：

10.1016/S0039-6028(98)00714-6

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：

Sum frequency generation and IR absorption spectra of CO adsorbed on Pd(111) are reported. Adsorption of CO in the surface temperature range 150-230 K results in the appearance of extra peaks in the spectral range of the CO stretching vibration. The conditions of appearance of these peaks, and their stability, are investigated. The extra peaks are assigned to sites at antiphase domain boundaries, in which CO is less bonded than in the regular sites of the domains. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：171 / 180

页数：10

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