Abstract
The aim of this work was to study the preparation of SiC-supported V2O5 catalysts and the kinetics on selective catalytic reduction for NO with NH3 on the catalysts. Using incipient wetness impregnation methods, vanadium oxide was applied to silicon carbide to prepare a SiC-supported vanadium oxide. X-ray photoelectron spectroscopy analysis confirmed that V2O5 existed in the prepared materials. Using the prepared materials as catalysts, selective catalytic reduction for NO by NH3 has been analyzed, and reaction kinetics on the catalysts was studied at 150–300 °C. The obtained results showed that the reduction reaction on the catalysts is close to zero-order kinetics with respect to NH3, first-order with respect to NO, and half-order to O2. Apparent activation energy for the reduction reaction was found to be 38 kJ mol−1. The prepared materials are stable and reusable.
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