STM study of water adsorption on the TiO2(110)-(1 × 2) surface

P. Maksymovych; S. Mezhenny; J. T. Yates

doi:10.1016/j.cplett.2003.09.159

STM study of water adsorption on the TiO₂(110)-(1 × 2) surface

P. Maksymovych, S. Mezhenny, J. T. Yates

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

31 Scopus citations

Abstract

Adsorption of H₂O on the TiO₂(110)-(1×2) surface was studied in ultrahigh vacuum (UHV) using the scanning tunneling microscope (STM). At 300 K H₂O adsorbs preferentially on the crosslinks of the TiO₂(110)-(1×2) surface. Cooling down the surface to 110 K during H₂O exposure results in adsorption on the crosslinks and other surface sites, presumably the 5-fold coordinated Ti-atoms. The reaction products, observed as bright protrusions at positive sample bias, are attributed to hydroxyl groups due to H₂O dissociation. In addition, it was found that the UV-induced line-defects on the TiO ₂(110)-(1×2) surface do not interact with H₂O as seen by STM.

Original language	English
Pages (from-to)	270-276
Number of pages	7
Journal	Chemical Physics Letters
Volume	382
Issue number	3-4
DOIs	https://doi.org/10.1016/j.cplett.2003.09.159
State	Published - Dec 5 2003
Externally published	Yes

Funding

We gratefully acknowledge Dr. D.C. Sorescu, and Mr. T. Zubkov for fruitful discussions. This work was supported by the DoD Multidisciplinary University Research Initiative (MURI) program administered by the Army Research Office under Grant DAAD 19-01-0-0619 and a PPG industries grant.

Funders	Funder number
DoD Multidisciplinary University
Army Research Office	DAAD 19-01-0-0619

Access to Document

10.1016/j.cplett.2003.09.159

Cite this

@article{4aac83bd1f504575b8811c1ad235e0de,

title = "STM study of water adsorption on the TiO2(110)-(1 × 2) surface",

abstract = "Adsorption of H2O on the TiO2(110)-(1×2) surface was studied in ultrahigh vacuum (UHV) using the scanning tunneling microscope (STM). At 300 K H2O adsorbs preferentially on the crosslinks of the TiO2(110)-(1×2) surface. Cooling down the surface to 110 K during H2O exposure results in adsorption on the crosslinks and other surface sites, presumably the 5-fold coordinated Ti-atoms. The reaction products, observed as bright protrusions at positive sample bias, are attributed to hydroxyl groups due to H2O dissociation. In addition, it was found that the UV-induced line-defects on the TiO 2(110)-(1×2) surface do not interact with H2O as seen by STM.",

author = "P. Maksymovych and S. Mezhenny and Yates, {J. T.}",

year = "2003",

month = dec,

day = "5",

doi = "10.1016/j.cplett.2003.09.159",

language = "English",

volume = "382",

pages = "270--276",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - STM study of water adsorption on the TiO2(110)-(1 × 2) surface

AU - Maksymovych, P.

AU - Mezhenny, S.

AU - Yates, J. T.

PY - 2003/12/5

Y1 - 2003/12/5

N2 - Adsorption of H2O on the TiO2(110)-(1×2) surface was studied in ultrahigh vacuum (UHV) using the scanning tunneling microscope (STM). At 300 K H2O adsorbs preferentially on the crosslinks of the TiO2(110)-(1×2) surface. Cooling down the surface to 110 K during H2O exposure results in adsorption on the crosslinks and other surface sites, presumably the 5-fold coordinated Ti-atoms. The reaction products, observed as bright protrusions at positive sample bias, are attributed to hydroxyl groups due to H2O dissociation. In addition, it was found that the UV-induced line-defects on the TiO 2(110)-(1×2) surface do not interact with H2O as seen by STM.

AB - Adsorption of H2O on the TiO2(110)-(1×2) surface was studied in ultrahigh vacuum (UHV) using the scanning tunneling microscope (STM). At 300 K H2O adsorbs preferentially on the crosslinks of the TiO2(110)-(1×2) surface. Cooling down the surface to 110 K during H2O exposure results in adsorption on the crosslinks and other surface sites, presumably the 5-fold coordinated Ti-atoms. The reaction products, observed as bright protrusions at positive sample bias, are attributed to hydroxyl groups due to H2O dissociation. In addition, it was found that the UV-induced line-defects on the TiO 2(110)-(1×2) surface do not interact with H2O as seen by STM.

UR - http://www.scopus.com/inward/record.url?scp=0345724969&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2003.09.159

DO - 10.1016/j.cplett.2003.09.159

M3 - Article

AN - SCOPUS:0345724969

SN - 0009-2614

VL - 382

SP - 270

EP - 276

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

STM study of water adsorption on the TiO₂(110)-(1 × 2) surface

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this