Supported vanadium oxides are extensively used as an effective catalyst for various selective catalytic oxidation processes. Among various oxide supports TiO2 has drawn special attention since it imparts higher intrinsic activity for the vanadium oxide phase. However, commercially available TiO 2 (Degussa, P25, 50 m2/g) undergoes anatase to rutile phase transition and a loss of surface area at higher temperature. Furthermore, anatase to rutile phase transition occurs at much lower temperature in the presence of vanadium oxide. The vanadium oxide content also plays a role. Therefore, synthesis of high surface area thermally stable TiO2 is an interesting area of research. To increase the surface area and thermal stability, TiO2 can be intimately mixed by various techniques with another high surface area thermally stable oxide support such as SiO 2, AI2O3 etc.