Effect of Thermal Activation of Supported Catalysts Pt/MeOx,Where MOx = Al2O3, CeO2, La2O3, and ZrO2, for Complete Oxidation |
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| Authors: | Chzhu D P Tsyrul'nikov P G Kudrya E N Smolikov M D Borbat V F Bubnov A V |
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| Institution: | (1) Boreskov Institute of Catalysis (Omsk Branch), Siberian Division, Russian Academy of Sciences, Omsk, 644053, Russia;(2) Omsk State University, Omsk, 644077, Russia |
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| Abstract: | A sharp increase in the atomic catalytic activity (ACA) of supported platinum catalysts in the model reaction of n-pentane complete oxidation is found on going from the preliminary calcination temperature of 500–600°C to a temperature of 700°C. ACA increases by an order of magnitude for the Pt/ -Al2O3 system,  3 times for Pt/ZrO2, and 1.5 times for Pt/CeO2. The per-gram activities of all catalysts decrease because of a decrease in the dispersion of supported platinum with an increase in the temperature of preliminary calcination. |
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