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Adsorption of 3-(triethoxysilyl)propionitrile on a rutile TiO2(110) surface : An X-ray photoelectron spectroscopy study

Chaudhary, Shilpi LU ; Head, Ashley R. LU ; Johansson, Niclas LU ; Snezhkova, Olesia LU ; Ye, Lei LU orcid ; Montelius, Lars LU and Schnadt, Joachim LU orcid (2020) 64th DAE Solid State Physics Symposium 2019, DAE-SSPS 2019 In AIP Conference Proceedings 2265.
Abstract

The adsorption of 3-(triethoxysilyl)propionitrile (TESP) on a reduced rutile TiO2(110) surface has been investigated using synchrotron-based X-ray photoelectron spectroscopy in ultrahigh vacuum (UHV). We have studied TESP adsorption on two surface preparation of rutile TiO2 (110) to explore the role of surface defects. In the first preparation, the adsorption of TESP was studied on reduced TiO2 (110) surface at room temperature. In the second experiment TESP was adsorbed on the oxygen-treated TiO2 surface to quench the oxygen vacancies generated by UHVannealing of the TiO2 crystal. The molecular footprints of the TESP molecules confirms the adsorption on both types of... (More)

The adsorption of 3-(triethoxysilyl)propionitrile (TESP) on a reduced rutile TiO2(110) surface has been investigated using synchrotron-based X-ray photoelectron spectroscopy in ultrahigh vacuum (UHV). We have studied TESP adsorption on two surface preparation of rutile TiO2 (110) to explore the role of surface defects. In the first preparation, the adsorption of TESP was studied on reduced TiO2 (110) surface at room temperature. In the second experiment TESP was adsorbed on the oxygen-treated TiO2 surface to quench the oxygen vacancies generated by UHVannealing of the TiO2 crystal. The molecular footprints of the TESP molecules confirms the adsorption on both types of TiO2(110) surfaces. In the case of the reduced surface, temperature-dependent XPS measurements show the thermal stability of TESP molecules up to 600 °C. The comparison of the nitrogen and carbon lineshapes for both preparations suggests different adsorption geometries on the reduced and oxygen-dosed surfaces. To the best of our knowledge, the UHV preparations and measurements of TESP adsorption on rutile TiO2 (110) in the present study are reported for the first time.

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author
; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
DAE Solid State Physics Symposium 2019
series title
AIP Conference Proceedings
editor
Sharma, Veerendra K. ; Prajapat, C. L. and Yusuf, S. M.
volume
2265
article number
030298
publisher
American Institute of Physics (AIP)
conference name
64th DAE Solid State Physics Symposium 2019, DAE-SSPS 2019
conference location
Jodhpur, Rajasthan, India
conference dates
2019-12-18 - 2019-12-22
external identifiers
  • scopus:85096597872
ISSN
0094-243X
1551-7616
ISBN
9780735420250
DOI
10.1063/5.0017313
language
English
LU publication?
yes
id
e97c4cf7-71eb-422d-bbd9-6b78bd04615f
date added to LUP
2020-12-03 14:06:13
date last changed
2024-04-03 19:56:37
@inproceedings{e97c4cf7-71eb-422d-bbd9-6b78bd04615f,
  abstract     = {{<p>The adsorption of 3-(triethoxysilyl)propionitrile (TESP) on a reduced rutile TiO<sub>2</sub>(110) surface has been investigated using synchrotron-based X-ray photoelectron spectroscopy in ultrahigh vacuum (UHV). We have studied TESP adsorption on two surface preparation of rutile TiO<sub>2</sub> (110) to explore the role of surface defects. In the first preparation, the adsorption of TESP was studied on reduced TiO<sub>2</sub> (110) surface at room temperature. In the second experiment TESP was adsorbed on the oxygen-treated TiO<sub>2</sub> surface to quench the oxygen vacancies generated by UHVannealing of the TiO<sub>2</sub> crystal. The molecular footprints of the TESP molecules confirms the adsorption on both types of TiO<sub>2</sub>(110) surfaces. In the case of the reduced surface, temperature-dependent XPS measurements show the thermal stability of TESP molecules up to 600 °C. The comparison of the nitrogen and carbon lineshapes for both preparations suggests different adsorption geometries on the reduced and oxygen-dosed surfaces. To the best of our knowledge, the UHV preparations and measurements of TESP adsorption on rutile TiO<sub>2</sub> (110) in the present study are reported for the first time.</p>}},
  author       = {{Chaudhary, Shilpi and Head, Ashley R. and Johansson, Niclas and Snezhkova, Olesia and Ye, Lei and Montelius, Lars and Schnadt, Joachim}},
  booktitle    = {{DAE Solid State Physics Symposium 2019}},
  editor       = {{Sharma, Veerendra K. and Prajapat, C. L. and Yusuf, S. M.}},
  isbn         = {{9780735420250}},
  issn         = {{0094-243X}},
  language     = {{eng}},
  publisher    = {{American Institute of Physics (AIP)}},
  series       = {{AIP Conference Proceedings}},
  title        = {{Adsorption of 3-(triethoxysilyl)propionitrile on a rutile TiO<sub>2</sub>(110) surface : An X-ray photoelectron spectroscopy study}},
  url          = {{http://dx.doi.org/10.1063/5.0017313}},
  doi          = {{10.1063/5.0017313}},
  volume       = {{2265}},
  year         = {{2020}},
}