Molecules (Jun 2010)

Palladium/Zirconium Oxide Nanocomposite as a Highly Recyclable Catalyst for C-C Coupling Reactions in Water

  • Antonio Monopoli,
  • Angelo Nacci,
  • Vincenzo Calò,
  • Francesco Ciminale,
  • Pietro Cotugno,
  • Annarosa Mangone,
  • Lorena Carla Giannossa,
  • Pietro Azzone,
  • Nicola Cioffi

DOI
https://doi.org/10.3390/molecules15074511
Journal volume & issue
Vol. 15, no. 7
pp. 4511 – 4525

Abstract

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Palladium nanoparticles have been electrochemically supported on zirconium oxide nanostructured powders and all the nanomaterials have been characterized by several analytical techniques. The Pd/ZrO2 nanocatalyst is demonstrated to be a very efficient catalyst in Heck, Ullmann, and Suzuki reactions of aryl halides in water. The catalyst efficiency is attributed to the stabilization of Pd nanophases provided by tetra(alkyl)- ammonium hydroxide, which behaves both as base and PTC (phase transfer catalyst) agent.

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