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- W2323968796 abstract "The microkinetics based on density function theory (DFT) calculations is utilized to investigate the reaction mechanism of crotonaldehyde hydrogenation on Pt(111) in the free energy landscape. The dominant reaction channel of each hydrogenation product is identified. Each of them begins with the first surface hydrogenation of the carbonyl oxygen of crotonaldehyde on the surface. A new mechanism, 1,4-addition mechanism generating enols (butenol), which readily tautomerize to saturated aldehydes (butanal), is identified as a primary mechanism to yield saturated aldehydes instead of the 3,4-addition via direct hydrogenation of the ethylenic bond. The calculation results also show that the full hydrogenation product, butylalcohol, mainly stems from the deep hydrogenation of surface open-shell dihydrogenation intermediates. It is found that the apparent barriers of the dominant pathways to yield three final products are similar on Pt(111), which makes it difficult to achieve a high selectivity to the desired crotyl alcohol (COL)." @default.
- W2323968796 created "2016-06-24" @default.
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- W2323968796 date "2011-09-21" @default.
- W2323968796 modified "2023-10-14" @default.
- W2323968796 title "Reaction Mechanisms of Crotonaldehyde Hydrogenation on Pt(111): Density Functional Theory and Microkinetic Modeling" @default.
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- W2323968796 doi "https://doi.org/10.1021/jp206520w" @default.
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