Catalysis Letters

, Volume 132, Issue 1, pp 34–40

Functionalized Poly(ethylene glycol)-Stabilized Palladium Nanoparticles as an Efficient Catalyst for Aerobic Oxidation of Alcohols in Supercritical Carbon Dioxide/Poly(ethylene glycol) Biphasic Solvent System

  • Xiangrui Wang
  • Hanmin Yang
  • Bo Feng
  • Zhenshan Hou
  • Yu Hu
  • Yunxiang Qiao
  • Huan Li
  • Xiuge Zhao
Article

DOI: 10.1007/s10562-009-0038-4

Cite this article as:
Wang, X., Yang, H., Feng, B. et al. Catal Lett (2009) 132: 34. doi:10.1007/s10562-009-0038-4

Abstract

The functionalized Poly(ethylene glycol) (PEG)-stabilized Pd(0) nanoparticles have been utilized to selectively oxidize alcohols to the corresponding aldehydes or ketones in supercritical carbon dioxide (scCO2)/PEG (PEG-2000) biphasic system. It was demonstrated that the Pd(0) nanocatalyst was more active and selective, in comparison with the commercially available Pd/C catalyst, PVP-stabilized Pd nanocatalyst and Pd(0) catalyst without stabilization. The effects of CO2 pressure, reaction time and temperature on activity and selectivity were also further investigated in detail. The scCO2/PEG biphasic system was proved to be not only cheap and clean, but also recyclable for the aerobic oxidation of alcohols.

Keywords

Poly(ethylene glycol)Supercritical carbon dioxideAlcohol oxidationPalladium nanoparticles

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Xiangrui Wang
    • 1
  • Hanmin Yang
    • 2
  • Bo Feng
    • 1
  • Zhenshan Hou
    • 1
  • Yu Hu
    • 1
  • Yunxiang Qiao
    • 1
  • Huan Li
    • 1
  • Xiuge Zhao
    • 1
  1. 1.Key Laboratory for Advanced Materials, Research Institute of Industrial CatalysisEast China University of Science and TechnologyShanghaiChina
  2. 2.Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of EducationSouth-Central University for NationalitiesWuhanChina