Spatially-Resolved Calorimetry: Using IR Thermography to Measure Temperature and Trapped NOX Distributions on a NOX Adsorber Catalyst |
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| Authors: | Khurram Aftab Jasdeep Mandur Hector Budman Neal W. Currier Aleksey Yezerets William S. Epling |
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| Affiliation: | 1. School of Chemical Engineering, Federal University of Uberlandia, Av. Jo?o Naves de ávila, 2160, Bloco 1K, Campus Santa M?nica, Uberlandia, MG, 38400-902, Brazil
2. National Institute of Technology, INT, Av. Venezuela 82, Rio de Janeiro, RJ, 20081-310, Brazil
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| Abstract: | Palladium catalysts supported on CeO2, Ce0.75Zr0.25O2, ZrO2, TiO2, Nb2O5, Al2O3 were studied on the total oxidation of butyl carbitol. Several techniques were used to characterize the samples such as diffuse reflectance spectroscopy (DRS), temperature programmed reduction (TPR), cyclohexane dehydrogenation and CO temperature programmed desorption (TPD). DRS and TPR results revealed the presence of bulk PdO and PdO with strong interaction with the support. The catalytic tests showed the following order for decreasing activity: Pd/Ce0.75Zr0.25O2 > Pd/CeO2 > Pd/TiO2 > Pd/Nb2O5 > Pd/Al2O3 > Pd/ZrO2. However, when the turnover frequency (TOF) was calculated, all the samples had similar values. |
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| Keywords: | Butyl carbitol Volatile organic compounds Palladium Combustion |
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