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

文献情報

出版日 2010-01-27

DOI 10.1039/B921669C

インパクトファクター 3.676

著者

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

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要旨

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 (C3H6); 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 C3H6 combustion, an important undesired side-reaction over unpromoted Pd(111), is also moderated by Au.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

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