Reaction Kinetics, Mechanisms and Catalysis

, Volume 114, Issue 1, pp 147–155 | Cite as

Highly selective oxidation of benzyl alcohol to benzaldehyde catalyzed by nano Au/γ-Al2O3 under environment-friendly conditions

  • Nguyen Quang LongEmail author
  • Ngo Anh Quan


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/γ-Al2O3. Gold nanoparticles supported on gamma alumina (γ-Al2O3) were prepared by a deposition–precipitation method. These synthesized materials were characterized by several techniques such as X-ray diffraction, N2 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 °C after 2 h on the 2 % Au supported on γ-Al2O3 which was calcined at 550 °C.


Environment-friendly reaction Nano gold catalyst Selective oxidation Benzaldehyde 



This research is funded by Vietnam National University HoChiMinh City (VNU-HCM) under grant number C2014-20-33.


  1. 1.
    Haruta M, Kobayashi T, Sano H, Yamada N (1987) Novel gold catalysts for the oxidation of carbon monoxide at a temperature far below 0 °C. Chemical Society of Japan, Tokyo, pp 405–408Google Scholar
  2. 2.
    Long Nguyen Q, Salim Chris, Hinode Hirofumi (2008) Performance of nano-sized Au/TiO2 for selective catalytic reduction of NOx by propene. Appl Catal A 347(1):94–99CrossRefGoogle Scholar
  3. 3.
    Long Nguyen Q, Salim Chris, Hinode Hirofumi (2010) Roles of nano-sized Au in the reduction of NOx by propene over Au/TiO2: an in situ DRIFTS study. Appl Catal B 96(3):299–306Google Scholar
  4. 4.
    Long Nguyen Q, Salim Chris, Hinode Hirofumi (2009) Promotive effect of MO × (M = Ce, Mn) mechanically mixed with Au/TiO2 on the catalytic activity for nitrogen monoxide reduction by propene. Top Catal 52(6-7):779–783CrossRefGoogle Scholar
  5. 5.
    Hagen J (2006) Industrial catalysis: a practical approach. Wiley-VCH, New York, pp 261–291CrossRefGoogle Scholar
  6. 6.
    Bond GC, Louis C, Thompson DT (2006) Catalysis by gold. Imperial College Press, London, pp 146–165Google Scholar
  7. 7.
    Biella S, Prati L, Rossi M (2002) Selective oxidation of d-glucose on gold catalyst. J Catal 206(2):242–247CrossRefGoogle Scholar
  8. 8.
    Carrettin S, McMorn P, Johnston P, Griffin K, Hutchings GJ (2002) Selective oxidation of glycerol to glyceric acid using a gold catalyst in aqueous sodium hydroxide. Chem Commun 0(7):696–697CrossRefGoogle Scholar
  9. 9.
    Brühne F, Wright E (2002) Benzaldehyde in Ullmann’s encyclopedia of industrial chemistry. Wiley-VCH, New YorkGoogle Scholar
  10. 10.
    Azizi SN, Tilami SE (2013) Cu-modified analcime as a catalyst for oxidation of benzyl alcohol: experimental and theoretical. Microporous Mesoporous Mater 167:89–93CrossRefGoogle Scholar
  11. 11.
    Choi JH, Kang TH, Song JH, Bang Y (2014) Redox behavior and oxidation catalyst of HnXW12O40 (X = Co2+, B3+, Si4+ and P5+) Keggin heteropolyacid catalysts. Catal Commun 43:155–158CrossRefGoogle Scholar
  12. 12.
    Bal R, Pendem C (2014) Preparation of the CuCr2O4 spinel nanoparticles catalyst for selective oxidation of toluene to benzaldehyde. Green chem 16(5):2500–2508Google Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  1. 1.Faculty of Chemical EngineeringHo Chi Minh City University of TechnologyHo Chi MinhVietnam

Personalised recommendations