We investigate adsorption and reaction of hydrogen and acetic acid on the TiO2(011) surface and compare it to results for the (110) surface results. In particular we show that diffusion of hydrogen into the bulk becomes favorable at elevated temperatures and this precedes lattice oxygen abstraction and water formation, which has been suggested for the (110) surface.  For strongly covalent bonded molecules, like acetic acid, we propose a restructuring of the surface upon chemisorptions.  Thermal reaction of acetate with the TiO2 substrate results in oxidation of Ti-interstitials at the surface causing formation of a new TiO2 surface phase. We end the talk by discussing the electronic properties of this new surface.

Surface chemistry of the rutile TiO<sub>2</sub>(011)-2x1 surface

245th National Meeting (2013)

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Surface chemistry of the rutile TiO2(011)-2x1 surface

Surface chemistry of the rutile TiO₂(011)-2x1 surface