4.7 Article

pH-Sensitive Gold Nanoparticle Catalysts for the Aerobic Oxidation of Alcohols

Journal

INORGANIC CHEMISTRY
Volume 50, Issue 21, Pages 11069-11074

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ic201608j

Keywords

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Funding

  1. Sino-Swiss Science and Technology Corporation [2010DFA42110]
  2. Marie-Curie Fellowship [252125-TCPBRCBDP]

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Gold nanoparticles (NPs) stabilized by carboxylate modified polyvinylpyrrolidone have been prepared and fully characterized. The gold NPs efficiently catalyze the aerobic oxidation of benzyl alcohol in water at ambient temperature and are easily separated from the reaction mixture by lowering the pH of the solution, causing the NPs to precipitate. The mechanism of the precipitation process has been studied. Due to the efficiency of this process, the NPs may be reused as catalysts by readjusting their pH.

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