Selective hydrogenation of phenylacetylene into styrene on gold nanoparticles |
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Authors: | S A Nikolaev N A Permyakov V V Smirnov A Yu Vasil’kov S N Lanin |
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Institution: | 1. Faculty of Chemistry, Moscow State University, Moscow, 119992, Russia
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Abstract: | Gold nanoparticles (2–10 nm) supported on γ-Al2O3 exhibit high activity and stability in the hydrogenation of phenylacetylene into styrene in the phenylacetylene-styrene mixture. The selectivity of the catalyst is particle size-dependent: the styrene-to-ethylbenzene molar ratio in the reaction products increases from 2 to 30 as the average gold particle size decreases from 8 to 2.5 nm. The selectivity of phenylacetylene hydrogenation correlates with the selectivity of phenylacetylene adsorption on Au/γ-Al2O3 from the phenylacetylene-styrene mixture. |
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