Effect of Pretreatment on Carbon-Supported Au/TiO2 Catalysts for Preferential Oxidation of CO |
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| Authors: | Nina Hammer Karina Mathisen Tina Zscherpe De Chen Magnus R?nning |
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| Affiliation: | 1. Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway
2. Department of Chemistry, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway
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| Abstract: | The impact of thermal treatment at various preparation stages of carbon supported Au/TiO2 catalysts prior to oxidation of CO in the presence and absence of hydrogen was studied. An increase in catalytic activity for thermally treated samples due to a more ordered structure of TiO2 was observed. A reversible deactivation of the catalysts occurred in the absence of hydrogen. However, the activity was restored at preferential CO oxidation conditions in presence of hydrogen. |
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