Enhanced production of benzyl alcohol in the gas phase continuous hydrogenation of benzaldehyde over Au/Al2O3

Li, Maoshuai and Wang, Xiaodong and Perret, Noemie and Keane, Mark A. (2014) Enhanced production of benzyl alcohol in the gas phase continuous hydrogenation of benzaldehyde over Au/Al2O3. Catalysis Communications, 46. pp. 187-191. ISSN 1566-7367

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Abstract

Exclusive hydrogenation of benzaldehyde to benzyl alcohol in gas phase continuous operation (393–413 K, 1 atm) was achieved over Au/Al2O3, Au/TiO2 and Au/ZrO2. Synthesis of Au/Al2O3 by deposition–precipitation generated a narrower distribution (2–8 nm) of smaller (mean = 4.3 nm) Au particles relative to impregnation (1–21 nm, mean = 7.9 nm) with increased H2 uptake under reaction conditions and higher benzaldehyde turnover. Switching reactant carrier from ethanol to water resulted in a significant enhancement of selective hydrogenation rate over Au/Al2O3 with 100% benzyl alcohol yield, attributed to increased available reactive hydrogen. This response extends to reaction over Au/TiO2 and Au/ZrO2.

Item Type:
Journal Article
Journal or Publication Title:
Catalysis Communications
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1500/1508
Subjects:
ID Code:
136893
Deposited By:
Deposited On:
23 Sep 2019 11:35
Refereed?:
Yes
Published?:
Published
Last Modified:
12 Aug 2020 09:32