Kinetics of low temperature CO oxidation over Pt/SnO2 catalyst |
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Authors: | Lai Sheng Sun Shi Yao Li Bei Lu Li |
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Affiliation: | (1) Dalian Institute of Chemical Physics, Chinese Academy of Sciences, P.O. Box 110, 116023 Dalian, China |
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Abstract: | In a CO−O2 stoichiometric mixture, the kinetic parameters, reaction order, rate constant and activation energy of CO oxidation over a Pt/SnO2 catalyst have been measured using a fixed bed flow reactor near 0°C. The results show that it is a first-order reaction. The activation energy of CO oxidation over Pt/SnO2 prepared with SnO2 calcined at 300°C was approximately 21 kJ/mol. The activation energy of CO oxidation over Pt/SnO2 changed slowly with SnO2 calcination temperature above 400°C, and reached approximately 45 kJ/mol. |
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Keywords: | Pt/SnO2 activation energy CO oxidation |
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