Role of Adsorption of Reagents in Reduction of NO by Propene on ZrO2-Based Complex Oxide Systems |
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| Authors: | Struzhko V L Mironyuk T V Orlik S N Tel'biz G M |
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| Institution: | (1) L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 31 Nauky Prospekt, Kyiv, 03039, Ukraine |
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| Abstract: | We have used IR spectroscopy to study adsorption of NO, propene, and their mixture on Rh-Cr2O3/ZrO2 and Rh-CeO2/ZrO2 catalysts at temperatures of 293-623 K. We have established that adsorption and coadsorption of the reagents (NO and C3H6) have important differences, depending on the nature of the surface. Weak adsorption interactions of the reaction mixture on Rh-CeO2/ZrO2 lead to significantly lower activity of this catalyst in selective catalytic reduction (SCR) of NO by propene. |
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