Water Adsorption at the Tetrahedral Titania Surface Layer of SrTiO3(110)-(4 × 1).
(2013) In Journal of Physical Chemistry C 117(49). p.26060-26069- Abstract
- The interaction of water with oxide surfaces is of great interest for both fundamental science and applications. We present a combined theoretical (density functional theory (DFT)) and experimental (scanning tunneling microscopy (STM) and photoemission spectroscopy (PES)) study of water interaction with the two-dimensional titania overlayer that terminates the SrTiO3(110)-(4 × 1) surface and consists of TiO4 tetrahedra. STM and core-level and valence band PES show that H2O neither adsorbs nor dissociates on the stoichiometric surface at room temperature, whereas it does dissociate at oxygen vacancies. This is in agreement with DFT calculations, which show that the energy barriers for water dissociation on the stoichiometric and reduced... (More)
- The interaction of water with oxide surfaces is of great interest for both fundamental science and applications. We present a combined theoretical (density functional theory (DFT)) and experimental (scanning tunneling microscopy (STM) and photoemission spectroscopy (PES)) study of water interaction with the two-dimensional titania overlayer that terminates the SrTiO3(110)-(4 × 1) surface and consists of TiO4 tetrahedra. STM and core-level and valence band PES show that H2O neither adsorbs nor dissociates on the stoichiometric surface at room temperature, whereas it does dissociate at oxygen vacancies. This is in agreement with DFT calculations, which show that the energy barriers for water dissociation on the stoichiometric and reduced surfaces are 1.7 and 0.9 eV, respectively. We propose that water weakly adsorbs on two-dimensional, tetrahedrally coordinated overlayers. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4223499
- author
- Wang, Zhiming ; Hao, Xianfeng ; Gerhold, Stefan ; Novotny, Zbynek ; Franchini, Cesare ; McDermott, Eamon ; Schulte, Karina LU ; Schmid, Michael and Diebold, Ulrike
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physical Chemistry C
- volume
- 117
- issue
- 49
- pages
- 26060 - 26069
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000328529800023
- pmid:24353755
- scopus:84890480517
- pmid:24353755
- ISSN
- 1932-7447
- DOI
- 10.1021/jp407889h
- language
- English
- LU publication?
- yes
- id
- 4163f9a7-d042-4b1a-8bdd-5758d878bc03 (old id 4223499)
- date added to LUP
- 2016-04-01 10:57:43
- date last changed
- 2022-04-20 07:49:05
@article{4163f9a7-d042-4b1a-8bdd-5758d878bc03, abstract = {{The interaction of water with oxide surfaces is of great interest for both fundamental science and applications. We present a combined theoretical (density functional theory (DFT)) and experimental (scanning tunneling microscopy (STM) and photoemission spectroscopy (PES)) study of water interaction with the two-dimensional titania overlayer that terminates the SrTiO3(110)-(4 × 1) surface and consists of TiO4 tetrahedra. STM and core-level and valence band PES show that H2O neither adsorbs nor dissociates on the stoichiometric surface at room temperature, whereas it does dissociate at oxygen vacancies. This is in agreement with DFT calculations, which show that the energy barriers for water dissociation on the stoichiometric and reduced surfaces are 1.7 and 0.9 eV, respectively. We propose that water weakly adsorbs on two-dimensional, tetrahedrally coordinated overlayers.}}, author = {{Wang, Zhiming and Hao, Xianfeng and Gerhold, Stefan and Novotny, Zbynek and Franchini, Cesare and McDermott, Eamon and Schulte, Karina and Schmid, Michael and Diebold, Ulrike}}, issn = {{1932-7447}}, language = {{eng}}, number = {{49}}, pages = {{26060--26069}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of Physical Chemistry C}}, title = {{Water Adsorption at the Tetrahedral Titania Surface Layer of SrTiO3(110)-(4 × 1).}}, url = {{http://dx.doi.org/10.1021/jp407889h}}, doi = {{10.1021/jp407889h}}, volume = {{117}}, year = {{2013}}, }