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  Ultrathin Ti-Silicate Film on a Ru(0001) Surface

Fischer, F. D., Sauer, J., Yu, X., Boscoboinik, J. A., Shaikhutdinov, S. K., & Freund, H.-J. (2015). Ultrathin Ti-Silicate Film on a Ru(0001) Surface. The Journal of Physical Chemistry C, 119(27), 15443-15448. doi:10.1021/acs.jpcc.5b04291.

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 Creators:
Fischer, Frank Daniel1, Author
Sauer, Joachim1, Author
Yu, Xin2, Author           
Boscoboinik, Jorge Anibal2, Author           
Shaikhutdinov, Shamil K.2, Author           
Freund, Hans-Joachim2, Author           
Affiliations:
1Institut für Chemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany, ou_persistent22              
2Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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 Abstract: Ultrathin Ti-silicate films were prepared on a Ru(0001) surface. Low-energy electron diffraction, scanning tunneling microscopy, and infrared reflection–absorption spectroscopy results support a structural model for the atomic structure of the films that is proposed using density functional theory calculations of films with varying Ti/Si ratios. The film segregates into a pure silicate and a Ti-silicate phase. According to the calculations, a uniform distribution of Ti in the silicate bilayer framework is energetically unfavorable. In the proposed structure, the Ti-silicate film with a Ti/Si 1:1 ratio consists of a monolayer of corner-sharing [SiO4] tetrahedra on top of a monolayer formed by [TiO6] octahedra. Ti–O–Ru bonds connect the film to the Ru substrate. Similar structures are known for both naturally occurring phyllosilicates and a recently reported Fe-silicate film.

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Language(s): eng - English
 Dates: 2015-06-112015-05-052015-06-242015-06-242015-07-09
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.jpcc.5b04291
 Degree: -

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Title: The Journal of Physical Chemistry C
  Abbreviation : J. Phys. Chem. C
Source Genre: Journal
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Publ. Info: Washington DC : American Chemical Society
Pages: - Volume / Issue: 119 (27) Sequence Number: - Start / End Page: 15443 - 15448 Identifier: ISSN: 1932-7447
CoNE: https://pure.mpg.de/cone/journals/resource/954926947766