The interaction between adsorbed OH and O-2 on TiO2 surfaces

Li-Min Liu, Paul Crawford, P. Hu*

*Corresponding author for this work

Research output: Contribution to journalLiterature review

90 Citations (Scopus)

Abstract

Reduced TiO2 (110) surfaces usually have OH groups as a result of H2O dissociation at oxygen vacancy defects. Because of excess electrons due to OH adsorption, OH/TiO2. exhibit interesting properties favorable to further O-2 or H2O adsorption. Both O-2 and H2O can adsorb and easily diffuse on the OH/TiO2 surface; such behavior plays a significant role in photocatalysis, heterogeneous catalysis, electronic devices and sensors. Indeed, the processes of H2O dissociation, O-2 and H2O diffusion on Such TiO2 surfaces, in the presence of OH groups, are important issues in their own right. Herein, the most recent experimental and theoretical progresses in understanding the interactions between adsorbed OH groups and O-2, or H2O, over TiO2 (110) surfaces and their implications will be reviewed. (c) 2009 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)155-176
Number of pages22
JournalProgress in surface science
Volume84
Issue number5-6
DOIs
Publication statusPublished - 2009

Keywords

  • DENSITY-FUNCTIONAL THEORY
  • PHOTOINDUCED HYDROPHILIC CONVERSION
  • DIFFUSE-REFLECTANCE SPECTROSCOPY
  • TEMPERATURE CO OXIDATION
  • GOLD-BASED CATALYSTS
  • X-RAY REFLECTIVITY
  • NEWTON BLACK FILM
  • TIO2(110) SURFACE
  • ELECTRONIC-STRUCTURE
  • TITANIUM-DIOXIDE

Cite this

Liu, Li-Min ; Crawford, Paul ; Hu, P. / The interaction between adsorbed OH and O-2 on TiO2 surfaces. In: Progress in surface science. 2009 ; Vol. 84, No. 5-6. pp. 155-176.
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title = "The interaction between adsorbed OH and O-2 on TiO2 surfaces",
abstract = "Reduced TiO2 (110) surfaces usually have OH groups as a result of H2O dissociation at oxygen vacancy defects. Because of excess electrons due to OH adsorption, OH/TiO2. exhibit interesting properties favorable to further O-2 or H2O adsorption. Both O-2 and H2O can adsorb and easily diffuse on the OH/TiO2 surface; such behavior plays a significant role in photocatalysis, heterogeneous catalysis, electronic devices and sensors. Indeed, the processes of H2O dissociation, O-2 and H2O diffusion on Such TiO2 surfaces, in the presence of OH groups, are important issues in their own right. Herein, the most recent experimental and theoretical progresses in understanding the interactions between adsorbed OH groups and O-2, or H2O, over TiO2 (110) surfaces and their implications will be reviewed. (c) 2009 Elsevier Ltd. All rights reserved.",
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The interaction between adsorbed OH and O-2 on TiO2 surfaces. / Liu, Li-Min; Crawford, Paul; Hu, P.

In: Progress in surface science, Vol. 84, No. 5-6, 2009, p. 155-176.

Research output: Contribution to journalLiterature review

TY - JOUR

T1 - The interaction between adsorbed OH and O-2 on TiO2 surfaces

AU - Liu, Li-Min

AU - Crawford, Paul

AU - Hu, P.

PY - 2009

Y1 - 2009

N2 - Reduced TiO2 (110) surfaces usually have OH groups as a result of H2O dissociation at oxygen vacancy defects. Because of excess electrons due to OH adsorption, OH/TiO2. exhibit interesting properties favorable to further O-2 or H2O adsorption. Both O-2 and H2O can adsorb and easily diffuse on the OH/TiO2 surface; such behavior plays a significant role in photocatalysis, heterogeneous catalysis, electronic devices and sensors. Indeed, the processes of H2O dissociation, O-2 and H2O diffusion on Such TiO2 surfaces, in the presence of OH groups, are important issues in their own right. Herein, the most recent experimental and theoretical progresses in understanding the interactions between adsorbed OH groups and O-2, or H2O, over TiO2 (110) surfaces and their implications will be reviewed. (c) 2009 Elsevier Ltd. All rights reserved.

AB - Reduced TiO2 (110) surfaces usually have OH groups as a result of H2O dissociation at oxygen vacancy defects. Because of excess electrons due to OH adsorption, OH/TiO2. exhibit interesting properties favorable to further O-2 or H2O adsorption. Both O-2 and H2O can adsorb and easily diffuse on the OH/TiO2 surface; such behavior plays a significant role in photocatalysis, heterogeneous catalysis, electronic devices and sensors. Indeed, the processes of H2O dissociation, O-2 and H2O diffusion on Such TiO2 surfaces, in the presence of OH groups, are important issues in their own right. Herein, the most recent experimental and theoretical progresses in understanding the interactions between adsorbed OH groups and O-2, or H2O, over TiO2 (110) surfaces and their implications will be reviewed. (c) 2009 Elsevier Ltd. All rights reserved.

KW - DENSITY-FUNCTIONAL THEORY

KW - PHOTOINDUCED HYDROPHILIC CONVERSION

KW - DIFFUSE-REFLECTANCE SPECTROSCOPY

KW - TEMPERATURE CO OXIDATION

KW - GOLD-BASED CATALYSTS

KW - X-RAY REFLECTIVITY

KW - NEWTON BLACK FILM

KW - TIO2(110) SURFACE

KW - ELECTRONIC-STRUCTURE

KW - TITANIUM-DIOXIDE

U2 - 10.1016/j.progsurf.2009.01.002

DO - 10.1016/j.progsurf.2009.01.002

M3 - Literature review

VL - 84

SP - 155

EP - 176

JO - Progress in surface science

JF - Progress in surface science

SN - 0079-6816

IS - 5-6

ER -