Hansen, JØ;
Bebensee, R;
Martinez, U;
Porsgaard, S;
Lira, E;
Wei, Y;
Lammich, L;
... Wendt, S; + view all
(2016)
Unravelling Site-Specific Photo-Reactions of Ethanol on Rutile TiO2(110).
Scientific Reports
, 6
, Article 21990. 10.1038/srep21990.
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Abstract
Finding the active sites of catalysts and photo-catalysts is crucial for an improved fundamental understanding and the development of efficient catalytic systems. Here we have studied the photo-activated dehydrogenation of ethanol on reduced and oxidized rutile TiO2(110) in ultrahigh vacuum conditions. Utilizing scanning tunnelling microscopy, various spectroscopic techniques and theoretical calculations we found that the photo-reaction proceeds most efficiently when the reactants are adsorbed on regular Ti surface sites, whereas species that are strongly adsorbed at surface defects such as O vacancies and step edges show little reaction under reducing conditions. We propose that regular Ti surface sites are the most active sites in photo-reactions on TiO2.
Type: | Article |
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Title: | Unravelling Site-Specific Photo-Reactions of Ethanol on Rutile TiO2(110) |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1038/srep21990 |
Publisher version: | http://dx.doi.org/10.1038/srep21990 |
Language: | English |
Additional information: | Copyright © The authors 2016. This work is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/). The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
URI: | https://discovery.ucl.ac.uk/id/eprint/1507784 |
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