Direct visualization of defect-mediated dissociation of water on TiO 2(110)

Oier Bikondoa; Chi L. Pang; Roslinda Ithnin; Christopher A. Muryn; Hiroshi Onishi; Geoff Thornton

doi:10.1038/nmat1592

Direct visualization of defect-mediated dissociation of water on TiO ₂(110)

Oier Bikondoa^*, Chi L. Pang, Roslinda Ithnin, Christopher A. Muryn, Hiroshi Onishi, Geoff Thornton

^*Corresponding author for this work

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

Abstract

The reaction of water molecules with bridging-oxygen vacancies on a model oxide surface, rutile TiO₂(110 was analyzed with the help of scanning tunneling microscope (STM). The rutile TiO₂ (110) surface was characterized by alternate rows of five-fold-coordinated Ti and bridging-O atoms that run in the (001) direction. The crystal was prepared using cycles of Ar-ion bombardment and annealing. Results show that the repeated high-voltage scan/water exposure/high-voltage scan cycles would lead to an area of the surface free from O vacancies and H adatoms.

Original language	English
Pages (from-to)	189-192
Number of pages	4
Journal	Nature Materials
Volume	5
Issue number	3
DOIs	https://doi.org/10.1038/nmat1592
Publication status	Published - 17 Mar 2006

Research Beacons, Institutes and Platforms

Manchester Institute of Biotechnology

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10.1038/nmat1592

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title = "Direct visualization of defect-mediated dissociation of water on TiO 2(110)",

abstract = "The reaction of water molecules with bridging-oxygen vacancies on a model oxide surface, rutile TiO2(110 was analyzed with the help of scanning tunneling microscope (STM). The rutile TiO2 (110) surface was characterized by alternate rows of five-fold-coordinated Ti and bridging-O atoms that run in the (001) direction. The crystal was prepared using cycles of Ar-ion bombardment and annealing. Results show that the repeated high-voltage scan/water exposure/high-voltage scan cycles would lead to an area of the surface free from O vacancies and H adatoms.",

author = "Oier Bikondoa and Pang, {Chi L.} and Roslinda Ithnin and Muryn, {Christopher A.} and Hiroshi Onishi and Geoff Thornton",

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T1 - Direct visualization of defect-mediated dissociation of water on TiO 2(110)

AU - Bikondoa, Oier

AU - Pang, Chi L.

AU - Ithnin, Roslinda

AU - Muryn, Christopher A.

AU - Onishi, Hiroshi

AU - Thornton, Geoff

PY - 2006/3/17

Y1 - 2006/3/17

N2 - The reaction of water molecules with bridging-oxygen vacancies on a model oxide surface, rutile TiO2(110 was analyzed with the help of scanning tunneling microscope (STM). The rutile TiO2 (110) surface was characterized by alternate rows of five-fold-coordinated Ti and bridging-O atoms that run in the (001) direction. The crystal was prepared using cycles of Ar-ion bombardment and annealing. Results show that the repeated high-voltage scan/water exposure/high-voltage scan cycles would lead to an area of the surface free from O vacancies and H adatoms.

AB - The reaction of water molecules with bridging-oxygen vacancies on a model oxide surface, rutile TiO2(110 was analyzed with the help of scanning tunneling microscope (STM). The rutile TiO2 (110) surface was characterized by alternate rows of five-fold-coordinated Ti and bridging-O atoms that run in the (001) direction. The crystal was prepared using cycles of Ar-ion bombardment and annealing. Results show that the repeated high-voltage scan/water exposure/high-voltage scan cycles would lead to an area of the surface free from O vacancies and H adatoms.

UR - http://www.scopus.com/inward/record.url?scp=33644613740&partnerID=8YFLogxK

U2 - 10.1038/nmat1592

DO - 10.1038/nmat1592

M3 - Article

AN - SCOPUS:33644613740

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VL - 5

SP - 189

EP - 192

JO - Nature Materials

JF - Nature Materials

IS - 3

ER -

Direct visualization of defect-mediated dissociation of water on TiO ₂(110)

Abstract

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