Palladium/zirconium oxide nanocomposite as a highly recyclable catalyst for C-C coupling reactions in water.
Palladium nanoparticles have been electrochemically supported on zirconium oxide nanostructured powders and all the nanomaterials have been characterized by several analytical techniques. The Pd/ZrO(2) 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.
Monopoli
Antonio
A
Department of Chemistry, Università degli Studi Aldo Moro, Via Orabona 4, 70126-Bari, Italy.
Nacci
Angelo
A
Calò
Vincenzo
V
Ciminale
Francesco
F
Cotugno
Pietro
P
Mangone
Annarosa
A
Giannossa
Lorena Carla
LC
Azzone
Pietro
P
Cioffi
Nicola
N
D064753:Ammonium Hydroxide; D002384:Catalysis; D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D006878:Hydroxides / Q000737:chemistry; D053761:Nanocomposites / Q000737:chemistry*; D055601:Organic Chemistry Phenomena; D010165:Palladium / Q000737:chemistry*; D059027:Recycling; D014867:Water / Q000737:chemistry; D015040:Zirconium / Q000737:chemistry*
D006841:Hydrocarbons, Aromatic; D006878:Hydroxides; D014867:Water; D064753:Ammonium Hydroxide; D010165:Palladium; D015040:Zirconium; C028541:zirconium oxide