Projects per year
Abstract
CO and C3H6 oxidation have been carried out in the absence and presence of water over a Pd/Al2O3catalyst. It is clear that water promotes CO and, as a consequence, C3H6oxidation takes place at muchlower temperatures compared with the dry feed. The significant increase in the catalyst’s activity withrespect to CO oxidation is not simply associated with changes in surface concentration as a result ofcompetitive adsorption effects. Utilising18O2as the reactant allows the pathways whereby the oxidationdue to gaseous dioxygen and where the water activates the CO and C3H6to be distinguished. In thepresence of water, the predominant pathway is via water activation with C16O2and C16O18O being themajor species formed and oxidation with dioxygen plays a secondary role. The importance of wateractivation is further supported by the significant decrease in its effect when using D2O versus H2O.
Original language | English |
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Pages (from-to) | 764-769 |
Number of pages | 6 |
Journal | Applied Catalysis B: Environment and Energy |
Volume | 147 |
Early online date | 11 Oct 2013 |
DOIs | |
Publication status | Published - 05 Apr 2014 |
Keywords
- Propene
- Carbon monoxide
- Palladium
- Water
- Deuterium oxide
- Isotope
- Oxidation
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
- General Environmental Science
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Dive into the research topics of 'Critical role of water in the direct oxidation of CO and hydrocarbons in diesel exhaust after treatment catalysis'. Together they form a unique fingerprint.Projects
- 1 Finished
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R1967CHM: Castech <CHEM/MATHS>
Goguet, A. (CoI), Hardacre, C. (CoI), Hu, P. (CoI), James, S. (CoI), Kohanoff, J. (CoI), Lagunas-Castedo, C. (CoI), Marr, A. (CoI), Paxton, A. (CoI), Rooney, D. (CoI), Shekhtman, S. (CoI), Sheldrake, G. (CoI) & Thompson, J. (CoI)
01/08/2008 → 31/12/2014
Project: Research