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 journalArticle

33 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 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.

Original languageEnglish
Pages (from-to)408-418
Number of pages11
JournalApplied Catalysis B: Environmental
Volume187
Early online date14 Jan 2016
DOIs
Publication statusPublished - 15 Jun 2016

Fingerprint

Methane
Platinum
Catalyst supports
methane
catalyst
platinum
Palladium
oxidation
Oxidation
Catalysts
palladium
Temperature
Catalyst activity
Oxygen
oxygen
Experiments
experiment
temperature

Keywords

  • Methane oxidation
  • Palladium
  • Platinum
  • Titania
  • Zeolite

Cite this

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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 - Osman Ahmed, Ahmed

AU - Abu-Dahrieh, Jehad K.

AU - Laffir, Fathima

AU - Curtin, Teresa

AU - Thompson, Jillian M.

AU - Rooney, David W.

PY - 2016/6/15

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KW - Zeolite

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