Gas phase stabiliser-free production of hydrogen peroxide using supported gold–palladium catalysts

Adeeba Akram, Simon J Freakley, Christian Reece, Marco Piccinini, Greg Shaw, Jennifer K Edwards, Frédérique Desmedt, Pierre Miquel, Eero Seuna, David J Willock, Jacob A Moulijn, Graham J. Hutchings

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Abstract

Hydrogen peroxide synthesis from hydrogen and oxygen in the gas phase is postulated to be a key reaction step in the gas phase epoxidation of propene using gold–titanium silicate catalysts. During this process H2O2 is consumed in a secondary step to oxidise an organic molecule so is typically not observed as a reaction product. We demonstrate that using AuPd nanoparticles, which are known to have high H2O2 synthesis rates in the liquid phase, it is possible to not only oxidise organic molecules in the gas phase but to detect H2O2 for the first time as a reaction product in both a fixed bed reactor and a pulsed Temporal Analysis of Products (TAP) reactor without stabilisers present in the gas feed. This observation opens up possibility of synthesising H2O2 directly using a gas phase reaction.
Original languageEnglish
Pages (from-to)5833-5837
Number of pages5
JournalChemical Science
Volume7
Issue number9
Early online date11 May 2016
DOIs
Publication statusPublished - 1 Sep 2016

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Akram, A., Freakley, S. J., Reece, C., Piccinini, M., Shaw, G., Edwards, J. K., Desmedt, F., Miquel, P., Seuna, E., Willock, D. J., Moulijn, J. A., & Hutchings, G. J. (2016). Gas phase stabiliser-free production of hydrogen peroxide using supported gold–palladium catalysts. Chemical Science, 7(9), 5833-5837. https://doi.org/10.1039/C6SC01332E