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The Influence of Surface Structure on the Interaction of Water with TiO2 (100)

Published online by Cambridge University Press:  15 February 2011

Michael A. Henderson
Michael A. Henderson*
Affiliation:
Environmental Molecular Science Laboratory, Pacific Northwest Laboratory, PO Box 999, MS K2-12, Richland, Wa 99352
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Abstract

The influence of surface structure on the interaction of water with TiO2(100) (rutile) was investigated. Two unique surface structures of the (100) crystal face can be prepared by oxidation (the bulk-terminated surface) and by vacuum reduction (the {110}-microfaceted surface). Thermal desorption profiles, which measure of the strength of the adsorbate-surface interaction, indicate that submonolayer coverages of water are more stable on the bulk-terminated surface than on the {110}- microfaceted surface. Also, subtle differences exist in the way water interacts with 2-coordinate 02 sites on these two surfaces. The implications of these results are considered for the acid/base properties of microcrystalline particles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 357: Symposium C – Structure and Properties of Interfaces in Ceramics , 1994 , 91
Copyright
Copyright © Materials Research Society 1995

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