Bimetallic Particles Supported on Mordenite and Alumina for as Catalysts for Methane Oxidation Academic Article in Scopus uri icon

abstract

  • Oxygenated compounds methane derivates like formaldehyde and methanol have become important primary chemicals in the manufacturing of various consumer products and chemical intermediates used in the petrochemical sector. This study investigates the catalytic conversion of methane over bimetallic particles supported on mordenite and alumina. Various catalyst compositions, including Pt-Ru, Pd-Ru, and Cu-Ru, were synthesized and characterized using techniques such as X-ray diffraction, nitrogen physisorption, and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. The catalytic performance of these catalysts was evaluated in methane oxidation reactions at different temperatures. Results indicate that temperature strongly influences methane conversion and selectivity toward desired products such as methanol and formaldehyde, mainly the Pt-Ru combination based on mordenite and alumina which obtained 45% and 78% of formaldehyde selectivity respectively, furthermore, the highest methane conversion was performed by this combination for both supports. Catalysts with specific crystal structures exhibit higher selectivity toward formaldehyde, highlighting the importance of catalyst design. Additionally, a trade-off between methane conversion and selectivity toward methanol and formaldehyde was observed. Overall, this study provides insights into optimizing catalytic systems for methane conversion, with implications for the development of efficient and selective catalysts for practical applications. © 2025 Wiley-VCH GmbH.

publication date

  • February 5, 2025