Reactivity of crotonaldehyde and propene over Au/Pd(111) surfaces

James Naughton, Adam F. Lee, Sarah Thompson, C.P. Vinod, Karen Wilson

Research output: Contribution to journalArticle

Abstract

The surface chemistry of crotonaldehyde and propene, primary and secondary reaction products in the aerobic selective oxidation of crotyl alcohol, has been studied by temperature-programmed reaction over Au/Pd(111) surface alloys. Gold strongly promotes desorption versus reaction at mole fractions ≥0.3 (crotonaldehyde) and ≥0.8 (CH); only ∼5% of the chemisorbed aldehyde or alkene react over Au-rich alloys. Surprisingly, co-adsorbed oxygen strongly suppresses crotonaldehyde decomposition over both clean Pd(111) and alloy surfaces, while CH combustion, an important undesired side-reaction over unpromoted Pd(111), is also moderated by Au.
Original languageEnglish
Pages (from-to)2670-2678
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume12
Issue number11
Early online date17 Dec 2009
DOIs
Publication statusPublished - Jan 2010

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2-butenal
reactivity
aldehydes
reaction products
alkenes
Alkenes
alcohols
Surface chemistry
desorption
Reaction products
Aldehydes
Gold
chemistry
gold
decomposition
Desorption
oxidation
oxygen
Oxygen
Decomposition

Bibliographical note

We thank the Engineering and Physical Sciences Research Council for financial support (EP/E046754/1; EP/G007594/1) and the award of a Leadership Fellowship (A.F.L.) and studentship (J.N.).

Cite this

Naughton, J., Lee, A. F., Thompson, S., Vinod, C. P., & Wilson, K. (2010). Reactivity of crotonaldehyde and propene over Au/Pd(111) surfaces. Physical Chemistry Chemical Physics, 12(11), 2670-2678. https://doi.org/10.1039/b921669c
Naughton, James ; Lee, Adam F. ; Thompson, Sarah ; Vinod, C.P. ; Wilson, Karen. / Reactivity of crotonaldehyde and propene over Au/Pd(111) surfaces. In: Physical Chemistry Chemical Physics. 2010 ; Vol. 12, No. 11. pp. 2670-2678.
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Naughton, J, Lee, AF, Thompson, S, Vinod, CP & Wilson, K 2010, 'Reactivity of crotonaldehyde and propene over Au/Pd(111) surfaces', Physical Chemistry Chemical Physics, vol. 12, no. 11, pp. 2670-2678. https://doi.org/10.1039/b921669c

Reactivity of crotonaldehyde and propene over Au/Pd(111) surfaces. / Naughton, James; Lee, Adam F.; Thompson, Sarah; Vinod, C.P.; Wilson, Karen.

In: Physical Chemistry Chemical Physics, Vol. 12, No. 11, 01.2010, p. 2670-2678.

Research output: Contribution to journalArticle

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