Catalysis Letters, Vol.118, No.1-2, 118-122, 2007
CO oxidation on anatase TiO2 nanotubes array and the effect of defects
The adsorption of O-2 and the CO oxidation reaction has been studied, by TDS and surface titrations, on a TiO2 nanotubes (TiNTs) array which consist of a 80/20% mixture of the anatase/rutile polymorph. Molecular O-2 adsorption, influenced by defects, as well as CO2 formation at low temperatures (similar to 100 K) were observed.
Keywords:gas surface interactions;adsorption kinetics;thermal desorption spectroscopy;anatase;rutile;TiO2 nanotubes