Tungsten Oxide on Titania

Further support for these structural inferences came from a detailed XAS study by Hilbrig et al. The pre-edge, XANES and EXAFS features of the samples also used for Raman spectroscopy were consistent with a highly dispersed tungsten-oxide phase consisting of a two-dimensional network of comer-linked WO5 and WO4 units, the 

These materials have been tested for their catalytic activity in the SCR reaction. NO conversion increased with WO3 content at a given temperature which is consistent with the proposed high dispersion of the surface tungsten oxide phase. 

---