Monolayer V2O5/TiO2–ZrO2catalysts for selective oxidation ofo-xylene: preparation and characterization
✍ Scribed by Komateedi N. Rao; Perala Venkataswamy; Pankaj Bharali; Heon Phil Ha; Benjaram M. Reddy
- Publisher
- Springer Netherlands
- Year
- 2011
- Tongue
- English
- Weight
- 522 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0922-6168
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Sol-gel derived titania based mixed oxides TiO 2 -SiO 2 and TiO 2 -ZrO 2 were used as supports for preparing a series of catalysts with vanadia contents varying between 1-25 wt.%. The supports and the catalysts were characterized by employing 51 V and 1 H solid-state MAS NMR, diffuse reflectance FT-
The gas-phase oxidation of o-xylene over a commercial V205-Ti02 catalyst was studied in tied bed non-isothermal reactor. The experiments were carried out at initial o-xylene concentrations which differed greatly from each other. The following reaction network was suggested.