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Analysis of Palladium–Platinum Catalysts Activity in the Process of Methane Oxidation by the SSITKA Method

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Abstract

Three bimetallic catalyst systems containing different amounts of palladium and platinum were tested in the process of complete methane oxidation. All catalysts demonstrate similar activity up to 780 K. Above this temperature, the catalyst containing the highest amount of palladium is expressly most active. Nonetheless, 100 % conversion of methane is reached at lower temperature on the catalyst containing the highest amount of platinum. These differences in the activity of tested catalysts result from the quantity and effectiveness of the use of the active centres on their surface. According to the SSITKA results the highest effectiveness of the use of active centres is demonstrated by the catalyst containing the highest amount of palladium, while the number of these centres is a more changeable parameter. In the 720–840 K temperature range it is higher, but below and over that range it is lower.

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Acknowledgements

The research was carried out with the equipment purchased thanks to the financial support of the European Regional Development Fund in the framework of the Polish Innovation Economy Operational Program (Contract No. POIG.02.01.00-06-024/09 Centre of Functional Nanomaterials).

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Authors and Affiliations

  1. Department of Chemical Technology, Faculty of Chemistry, University of Maria Curie-Skłodowska, Lublin, Poland

    M. Rotko, A. Machocki & G. Słowik

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  1. M. Rotko
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  2. A. Machocki
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  3. G. Słowik
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Correspondence to M. Rotko.

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Rotko, M., Machocki, A. & Słowik, G. Analysis of Palladium–Platinum Catalysts Activity in the Process of Methane Oxidation by the SSITKA Method. Catal Lett 147, 1783–1791 (2017). https://doi.org/10.1007/s10562-017-2072-y

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  • DOI: https://doi.org/10.1007/s10562-017-2072-y

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