A Molecular Mechanism for the Water-Hydroxyl Balance during Wetting of TiO2

Research output: Contribution to journalArticle

Abstract

We show that the formation of the wetting layer and the experimentally observed continuous shift of the H2O-OH balance toward molecular water at increasing coverage on a TiO2(110) surface can be rationalized on a molecular level. The mechanism is based on the initial formation of stable hydroxyl pairs, a repulsive interaction between these pairs, and an attractive interaction with respect to water molecules. The experimental data are obtained by synchrotron radiation photoelectron spectroscopy and interpreted with the aid of density functional theory calculations and Monte Carlo simulations.

Details

Authors
  • M. Amft
  • L. E. Walle
  • D. Ragazzon
  • A. Borg
  • Per Uvdal
  • N. V. Skorodumova
  • A. Sandell
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)17078-17083
JournalJournal of Physical Chemistry C
Volume117
Issue number33
StatePublished - 2013
Peer-reviewedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)