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

Christoph Rohmann; Yuemin Wang; Martin Muhler; James Metson; Hicham Idriss; Christof Woell

doi:10.1016/j.cplett.2008.05.056

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

Christoph Rohmann, Yuemin Wang, Martin Muhler, James Metson, Hicham Idriss, Christof Woell

School of Natural & Computing Sciences

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	10-12
Number of pages	3
Journal	Chemical Physics Letters
Volume	460
Issue number	1-3
Early online date	21 May 2008
DOIs	https://doi.org/10.1016/j.cplett.2008.05.056
Publication status	Published - 20 Jul 2008

Keywords

TIO2(110) surface
CO
adsorption
acidity
ethanol
cluster

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10.1016/j.cplett.2008.05.056

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

abstract = "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.",

keywords = "TIO2(110) surface, CO, adsorption, acidity, ethanol, cluster",

author = "Christoph Rohmann and Yuemin Wang and Martin Muhler and James Metson and Hicham Idriss and Christof Woell",

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doi = "10.1016/j.cplett.2008.05.056",

language = "English",

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journal = "Chemical Physics Letters",

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T1 - Direct monitoring of photo-induced reactions on well-defined metal oxide surfaces using vibrational spectroscopy

AU - Rohmann, Christoph

AU - Wang, Yuemin

AU - Muhler, Martin

AU - Metson, James

AU - Idriss, Hicham

AU - Woell, Christof

PY - 2008/7/20

Y1 - 2008/7/20

N2 - 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.

AB - 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.

KW - TIO2(110) surface

KW - CO

KW - adsorption

KW - acidity

KW - ethanol

KW - cluster

U2 - 10.1016/j.cplett.2008.05.056

DO - 10.1016/j.cplett.2008.05.056

M3 - Article

SN - 0009-2614

VL - 460

SP - 10

EP - 12

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

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

Abstract

Keywords

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