Abstract
In this study, the aim was to evaluate the effect of calcinations temperature on the catalytic activity and chemical composition of V 2O5/TiO2. We prepared V2O 5-loaded CVC-TiO2 catalysts by a combination of chemical vapor condensation (CVC) and impregnation method at different calcination temperatures. These catalysts were analyzed for their ability to catalyze NH3-based selective catalytic reduction of NOx. Compared with V2O5 loaded P25-TiO2 (commercial). V 2O5/CVC-TiO2 catalysts calcined above 200 C exhibited better performance towards NOx conversion than that by a commercial catalyst prepared using P25-TiO2 (calcined at 500 C). In addition, the NOx conversion rate obtained with the sample calcined at 500 C gave the best result (90 %) at a reaction temperature of 200 C. From the XPS results, we observed that the V4+/5+ ratio was well balanced when the V2O5 loaded CVC-TiO2 sample was calcined at 500 °C.
Original language | English |
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Pages (from-to) | 1069-1074 |
Number of pages | 6 |
Journal | Journal of Porous Materials |
Volume | 20 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2013 Oct |
Keywords
- Chemical vapor condensation
- Formic acid
- NO
- V
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering