This article is cited in 12 papers

Communications

Investigation of concentration hysteresis in methane oxidation on bimetallic Pt–Pd/Al₂O₃ catalyst by in situ XPS and mass spectrometry

I. A. Chetyrin, A. V. Bukhtiyarov, I. P. Prosvirin, V. I. Bukhtiyarov

G.K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: A combination of in situ XPS and mass spectrometry was used to investigate concentration hysteresis in the low- temperature oxidation of methane over a bimetallic Pt–Pd catalyst. It was shown that a decrease in the oxygen concentration leads to a sharp increase in the catalytic activity of the sample under study. The transition of the catalyst to a high/low activity state occurs due to the partial reduction/oxidation of the active component, with both platinum and palladium participating in the methane oxidation reaction.

Keywords: concentration hysteresis, methane, oxidation, platinum, palladium, bimetallic catalysts, in situ XPS, mass spectrometry.

Language: English

DOI: 10.1016/j.mencom.2021.09.014

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