Surface hydroxyl formation on vacuum-annealed TiO2(110)
Authors:
- 22 October 2001
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (17) , 2716-2718
Abstract
The change in surface composition and structure of a rutile TiO2(110) surface during thermal annealing in an ultrahigh vacuum was studied by coaxial impact–collision ion scattering spectroscopy and time-of-flight elastic recoil detection analysis. When the clean TiO2(110) surface with a 1×1 bridging-oxygen-rows structure was obtained by annealing at 730 °C, about one monolayer of hydrogen atoms still resided on the surface. These hydrogen atoms were assigned to surface hydroxyls as an ingredient of the TiO2(110)1×1 structure, which was formed in the self-restoration process of surface oxygen vacancy defects by dissociative adsorption of water molecules during thermal annealing.Keywords
This publication has 19 references indexed in Scilit:
- Electron-stimulated desorption of hydrogen from H/Si(001)-1×1 surface studied by time-of-flight elastic recoil detection analysisSurface Science, 1999
- A modulated molecular beam study of the extent of H2O dissociation on TiO2(110)Surface Science, 1998
- Light-induced amphiphilic surfacesNature, 1997
- An HREELS and TPD study of water on TiO2(110): the extent of molecular versus dissociative adsorptionSurface Science, 1996
- The interaction of H2O with a TiO2(110) surfaceSurface Science, 1994
- Interaction of water, oxygen, and hydrogen with TiO2(110) surfaces having different defect densitiesJournal of Vacuum Science & Technology A, 1992
- Synchrotron radiation studies of H2O adsorption on TiO2(110)Surface Science, 1989
- Coaxial impact-collision ion scattering spectroscopy (CAICISS): A novel method for surface structure analysisNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- Characterization of hydrogen species on TiO2 by electron-stimulated desorptionSurface Science, 1980
- Electrochemical Photolysis of Water at a Semiconductor ElectrodeNature, 1972