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

Naughton, J., Lee, Adam Fraser, Thompson, S., Vinod, C. P. and Wilson, Karen 2010. Reactivity of crotonaldehyde and propene over Au/Pd(111) surfaces. Physical Chemistry Chemical Physics 12 (11) , pp. 2670-2678. 10.1039/b921669c

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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 Z0.3 (crotonaldehyde) and Z0.8 (C3H6); only B5% 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 C3H6 combustion, an important undesired side-reaction over unpromoted Pd(111), is also moderated by Au.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1463-9076
Last Modified: 19 Mar 2016 22:21

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