Ev. Stefanovich et Tn. Truong, Ab initio study of water adsorption on TiO2(110): molecular adsorption versus dissociative chemisorption, CHEM P LETT, 299(6), 1999, pp. 623-629
Ab initio embedded cluster calculations of water interaction with the TiO2(
110) surface predict that molecular adsorption is more favorable than disso
ciative chemisorption. Unlike all previous calculations, this result is in
agreement with recent temperature-programmed desorption and modulated beams
experiments. Calculated surface relaxation, water adsorption energy and th
e densities of electronic states are also in good agreement with available
experimental data. This agreement suggests that the embedded cluster model
developed in this work is an accurate predictive tool that can be useful fo
r theoretical studies of photocatalytic reactions on titanium dioxide surfa
ces. (C) 1999 Elsevier Science B.V. All rights reserved.