Nadeem, Immad M, Harrison, George T, Wilson, Axel, Pang, Chi L, Zegenhagen, Joerg and Thornton, Geoff
(2018)
Bridging Hydroxyls on Anatase TiO<sub>2</sub>(101) by Water Dissociation in Oxygen Vacancies.
JOURNAL OF PHYSICAL CHEMISTRY B, 122 (2).
pp. 834-839.
Abstract
Titanium dioxide is a promising candidate for photocatalytic H<sub>2</sub> fuel production, and understanding water splitting on TiO<sub>2</sub> surfaces is vital toward explaining and improving the generation of H<sub>2</sub>. In this work, we electron irradiate anatase TiO<sub>2</sub>(101) at room temperature to create metastable surface oxygen vacancies in order to investigate their ability to dissociate H<sub>2</sub>O. Our scanning tunneling microscopy investigations suggest that the surface oxygen vacancies can dissociate H<sub>2</sub>O by forming bridging OH species. This claim is supported by theoretical calculations from the literature and our previously published spectroscopic measurements.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 40 Engineering, 34 Chemical Sciences, 4018 Nanotechnology, 3406 Physical Chemistry |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 30 Apr 2019 09:55 |
| Last Modified: | 20 Jun 2024 16:37 |
| DOI: | 10.1021/acs.jpcb.7b06955 |
| Open Access URL: | http://doi.org/10.1021/acs.jpcb.7b06955 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3039036 |
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