Article

Topics in Catalysis

, Volume 13, Issue 3, pp 231-236

First online:

Selective liquid phase oxidation using gold catalysts

  • Claudia BianchiAffiliated withDipartimento di Chimica Fisica ed Elettrochimica
  • , Francesca PortaAffiliated withDipartimento di Chimica Inorganica Metallorganica e Analitica e Centro CNR, Università di Milano
  • , Laura PratiAffiliated withDipartimento di Chimica Inorganica Metallorganica e Analitica e Centro CNR, Università di Milano
  • , Michele RossiAffiliated withDipartimento di Chimica Inorganica Metallorganica e Analitica e Centro CNR, Università di Milano

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Abstract

Au/C and Au/oxide (Al2O3, TiO2) have been compared in the liquid phase oxidation of glycols and a different trend in reactivity revealed. On the oxides the activity of supported gold increases by decreasing particle size, whereas on carbon maximum activity is achieved with gold particle mean diameter around 7–8 nm. XPS revealed that in the latter case activity depends not only on the size of the gold particle but also on its surface concentration.

gold catalyst selective oxidation carbon support