Positive effect of NOx on the performances of VOx/TiO2-based catalysts in the total oxidation abatement of chlorobenzene
(2005) Journal of Catalysis — Vol. 230, n° 2, p. 493-498 (2005)
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- Abstract
- The influence of NO on the performances of VOx/TiO2, VOx-WOx/TiO2, and VOx-MoOx/TiO2 catalysts is investigated in the combustion of chlorobenzene. NO proves to induce an increase in the chlorobenzene conversion. However, this happens only if O-2 is present and is maximized when the catalyst contains W or Mo. The suggested mechanism for the effect is: 1) NO is oxidized to NO2 mainly on WO, and MoOx; 2) afterward, NO2 assists O-2 in the reoxidation step (as described by Mars-van Krevelen) of the VOx phase, thus speeding up the oxidation cycle, which macroscopically corresponds to the increase in chlorobenzene conversion. (c) 2005 Elsevier Inc. All rights reserved.
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Bertinchamps, F., Treinen, M., Blangenois, N., Mariage, E., & Gaigneaux, E. (2005). Positive effect of NOx on the performances of VOx/TiO2-based catalysts in the total oxidation abatement of chlorobenzene. Journal of Catalysis, 230(2), 493-498. https://doi.org/10.1016/j.jcat.2005.01.009 (Original work published 2005)