Journal
REACTION KINETICS MECHANISMS AND CATALYSIS
Volume 114, Issue 1, Pages 147-155Publisher
SPRINGER
DOI: 10.1007/s11144-014-0773-4
Keywords
Environment-friendly reaction; Nano gold catalyst; Selective oxidation; Benzaldehyde
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Funding
- Vietnam National University HoChiMinh City (VNU-HCM) [C2014-20-33]
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The liquid phase oxidation of benzyl alcohol to benzaldehyde under environment-friendly conditions has been investigated. Water is used as a medium to replace toxic organic solvents. The reaction used hydrogen peroxide as the oxidant. The novel green reaction was catalyzed by nano Au/gamma-Al2O3. Gold nanoparticles supported on gamma alumina (gamma-Al2O3) were prepared by a deposition-precipitation method. These synthesized materials were characterized by several techniques such as X-ray diffraction, N-2 low temperature adsorption, and transmission electron microscopy. The benzaldehyde selectivity changed depending on the supports, the Au loading and the reaction temperature. Over 98 % selectivity of benzaldehyde was observed at 60 A degrees C after 2 h on the 2 % Au supported on gamma-Al2O3 which was calcined at 550 A degrees C.
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