Ethanol adsorption and diffusion on rutile TiO2(110)
PhD defence, Friday 3 February 2012. Peipei Huo.
2012.02.03 |
Peipei Huo
Titanium dioxide (TiO2) has great potential for applications in photocatalysis, solar cells, superhydrophilicity and water splitting.
During her PhD studies, Peipei Huo used scanning tunnelling microscopy (STM) to unravel fundamental processes occurring on the surface of TiO2, with the main focus on the adsorption and diffusion of ethanol molecules on rutile TiO2(110).
Peipei Huo studied the diffusion of EtOH molecules parallel and perpendicular to the rows of surface Ti atoms. EtOH diffusion perpendicular to the rows of surface Ti atoms is mediated by H adatoms that cap some of the bridge-bonded O atoms. Peipei Huo also studied photoreactions of EtOH on reduced and oxidised TiO2(110) surfaces, and confirmed the O2–TiO2(110) interaction – the crucial role of sub-surface donors such as Ti3+ interstitials.
The PhD degree was completed at the Interdisciplinary Nanoscience Centre (iNANO), Science and Technology, Aarhus University.
Time: Friday 3 February 2012 at 14.15
Place: Building 1523, room 318, Department of Physics and Astronomy, Aarhus University
Title of dissertation: Interactions of ethanol and oxygen with rutile TiO2(110). Surface science studies of TiO2 model catalysts
Contact information: Peipei Huo, peipei@inano.au.dk
Members of the assessment committee:
Professor Michael Reichling, Department of Physics, University of Osnabrück, Germany
Dr Renald Schaub, School of Chemistry, University of St Andrews, Scotland, UK
Associate Professor Trolle René Linderoth (chair), iNANO and Department of Physics and Astronomy, Aarhus University
Main supervisor:
Professor Flemming Besenbacher, iNANO, Aarhus University
Co-supervisor:
Dr Stefan Wendt, iNANO, Aarhus University
Language: The dissertation will be defended in English
The defence is public.
The dissertation is available for reading at the Graduate School of Science and Technology / GSST, Ny Munkegade 120, building 1521, room 112, 8000 Aarhus C.
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