Direct monitoring of photo-induced reactions on well-defined metal oxide surfaces using vibrational spectroscopy

被引：55

作者：

Rohmann, Christoph ^{[1
]}

Wang, Yuemin ^{[2
,3
]}

Muhler, Martin ^{[2
]}

Metson, James ^{[1
]}

Idriss, Hicham ^{[1
]}

Woell, Christof ^{[3
]}

机构：

[1] Univ Auckland, Dept Chem, Auckland, New Zealand

[2] Ruhr Univ Bochum, Tech Chem Lab, D-44780 Bochum, Germany

[3] Ruhr Univ Bochum, Lehrstuhl Phys Chem 1, D-44780 Bochum, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 460卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2008.05.056

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：

Reflection-absorption infra red spectroscopy (RAIRS) has been successfully used to study a prototype photochemical reaction: the photooxidation of CO over rutile TiO2(110) single crystal surfaces. RAIRS-results revealed the presence of irreversibly adsorbed CO on top of the five fold coordinated surface Ti atoms with a vibration frequency of 2190 cm (1) at 110 K. Because fundamental problems have so far prohibited the detection of CO on metal oxide single crystals with IR-spectroscopy (in contrast to the situation for powders), high resolution electron energy loss spectroscopy (HREELS) was also employed for further confirmation. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：10 / 12

页数：3

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