The Nature of Water Nucleation Sites on TiO2(110) Surfaces Revealed by Ambient Pressure X-ray Photoelectron Spectroscopy
The Journal of Physical Chemistry C2007Vol. 111(23), pp. 8278–8282
Citations Over TimeTop 10% of 2007 papers
Guido Ketteler, Susumu Yamamoto, Hendrik Bluhm, Klas Andersson, David E. Starr, D. Frank Ogletree, Hirohito Ogasawara, Anders Nilsson, Miquel Salmerón
Abstract
X-ray photoelectron spectroscopy at ambient conditions of pressure (up to 1.5 Torr) and temperature (265K<T<800K) was used to study the adsorption of water on rutile TiO{sub 2}(110) under conditions of thermodynamic equilibrium. It was found that OH groups in bridging positions, normally present in small amounts due to residual O-vacancies, act as nucleation sites for subsequent water adsorption. The adsorption enthalpy of water binding to these sites is {approx}70 kJ/mol, much stronger than that in the bulk liquid (45 kJ/mol). A model is proposed that relates the structure of the oxide surface to its hydrophilic character.
Related Papers
- → Preparation of Rutile Titanium Dioxide White Pigment via Doping and Calcination of Metatitanic Acid Obtained by the NaOH Molten Salt Method(2010)48 cited
- → Mechanism of rutile formation in vapor phase oxidation of TiCl4 by oxygen(1975)35 cited
- → Microflotation of Fine Rutile and Garnet with Different Particle Size Fractions(2022)13 cited
- ZnO/rutile-TiO₂, ZnO, rutile-TiO₂, CdS를 이용한 Congo red의 광 촉매 분해반응(2001)
- → First-Principles Study on the Surface Energies of Rutile TiO<sub>2</sub>(110) vs (011)-2×1 Surfaces(2014)