Author:
Hao Yufen,Pischetola Chiara,Cárdenas-Lizana Fernando,Keane Mark A.
Abstract
Abstract
We report for the first time 100% benzyl alcohol yield from the liquid phase (T = 353 K, P = 9 bar) hydrogenation of benzaldehyde over Au/Al2O3. Under the same reaction conditions, a benchmark Pt/Al2O3 catalyst promoted the formation of toluene and benzene as hydrogenolysis by-products. Reaction kinetics was subjected to a Hammett treatment and the reaction constant (ρ = 0.9) was found to be consistent with a nucleophilic mechanism. A solvent (alcohol, water and alcohol + water) effect is demonstrated and ascribed to competitive adsorption where solvation by polar (water) facilitates benzaldehyde activation.
Graphic Abstract
Funder
Engineering and Physical Sciences Research Council
Overseas Research Students Award Scheme
Publisher
Springer Science and Business Media LLC
Subject
General Chemistry,Catalysis
Cited by
7 articles.
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