Photoreactivity models for titanium dioxide with water

Author: Tributsch H.   Bak T.   Nowotny J.   Nowotny M. K.   Sheppard L. R.  

Publisher: Maney Publishing

ISSN: 1748-9245

Source: Energy Materials: Materials Science and Engineering for Energy Systems, Vol.3, Iss.3, 2008-09, pp. : 158-168

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Abstract

The present work considers the mechanisms of the reactivity of water with titanium dioxide, which, due to its high chemical stability, is one of the most promising photoelectrode materials for photoelectrochemical water splitting. The reactivity is considered in terms of two models. The first model considers the reaction between a water molecule and a Ti vacancy at the surface of an ideal rutile structure. The second reactivity model considers the charge transfer between a bi-dimensional surface layer and water molecules.

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