A bimetallic catalyst on a dual component support for low temperature total methane oxidation

Ahmed Osman Ahmed; Jehad K. Abu-Dahrieh; Fathima Laffir; Teresa Curtin; Jillian M. Thompson; David W. Rooney

doi:10.1016/j.apcatb.2016.01.017

A bimetallic catalyst on a dual component support for low temperature total methane oxidation

Ahmed Osman Ahmed, Jehad K. Abu-Dahrieh, Fathima Laffir, Teresa Curtin, Jillian M. Thompson^*, David W. Rooney

^*Corresponding author for this work

Research output: Contribution to journal › Article

38 Citations (Scopus)

Abstract

Palladium, platinum bimetallic catalysts supported on η-Al₂O₃, ZSM-5(23) and ZSM-5(80), with and without the addition of TiO₂, were prepared and used for low temperature total methane oxidation (TMO). The catalysts were tested under reaction temperatures of 200-500 °C with a GHSV of 100,000 mL g^-1 h^-1. It was found that all four components, palladium, platinum, an acidic support and oxygen carrier were needed to achieve a highly active and stable catalyst. The optimum support being 17.5% TiO₂ on ZSM-5(80) where the T_10% was observed at only 200 °C. On addition of platinum, longer time on stream experiments showed no decrease in the catalyst activity over 50 h at 250 °C.

Original language	English
Pages (from-to)	408-418
Number of pages	11
Journal	Applied Catalysis B: Environmental
Volume	187
Early online date	14 Jan 2016
DOIs	https://doi.org/10.1016/j.apcatb.2016.01.017 https://doi.org/10.1016/j.apcatb.2016.01.017
Publication status	Published - 15 Jun 2016

Keywords

Methane oxidation
Palladium
Platinum
Titania
Zeolite

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology
Environmental Science(all)

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Osman Ahmed, A., Abu-Dahrieh, J. K., Laffir, F., Curtin, T., Thompson, J. M., & Rooney, D. W. (2016). A bimetallic catalyst on a dual component support for low temperature total methane oxidation. Applied Catalysis B: Environmental, 187, 408-418. https://doi.org/10.1016/j.apcatb.2016.01.017, https://doi.org/10.1016/j.apcatb.2016.01.017

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abstract = "Palladium, platinum bimetallic catalysts supported on η-Al2O3, ZSM-5(23) and ZSM-5(80), with and without the addition of TiO2, were prepared and used for low temperature total methane oxidation (TMO). The catalysts were tested under reaction temperatures of 200-500 °C with a GHSV of 100,000 mL g-1 h-1. It was found that all four components, palladium, platinum, an acidic support and oxygen carrier were needed to achieve a highly active and stable catalyst. The optimum support being 17.5% TiO2 on ZSM-5(80) where the T10% was observed at only 200 °C. On addition of platinum, longer time on stream experiments showed no decrease in the catalyst activity over 50 h at 250 °C.",

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AU - Laffir, Fathima

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AU - Thompson, Jillian M.

AU - Rooney, David W.

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