CO oxidation on Pd(111), Pt(111), and Rh(111) surfaces studied by infrared chemiluminescence spectroscopy

被引：16

作者：

Nakao, Kenji ^{[1
]}

Watanabe, Osamu ^{[1
]}

Sasaki, Toshiaki ^{[1
]}

Ito, Shin-ichi ^{[1
]}

Tomishige, Keiichi ^{[1
]}

Kunimori, Kimio ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

来源：

SURFACE SCIENCE | 2007年 / 601卷 / 18期

基金：

日本学术振兴会;

关键词：

IR chemiluminescence; carbon dioxide; carbon monoxide; CO oxidation; noble metal;

D O I：

10.1016/j.susc.2007.04.015

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 infrared (IR) chemiluminescence studies of CO2 formed during steady-state CO oxidation over Pd(111), Pt(111), and Rh(111) surfaces were carried out. Analysis of their emission spectra indicates that the order of the average vibrational temperature (T AV) values V Of CO2 formed during CO oxidation was as follows: Pd(111) > Pt(111) > Rh(111), and the order is coincident with the potential energy V in the transition state expected by the theoretical calculations. Furthermore, it is suggested that the bending vibrational temperature (T-V(B)) can also be influenced by the angle of O-C-O (angle(ZOCO)) of the activated complex in the transition state, which has also been proposed by the theoretical calculations. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：3796 / 3800

页数：5

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