Efficient and recyclable carbon-​supported Pd nanocatalysts for the Suzuki-​Miyaura reaction in aqueous-​based media: Microwave vs. conventional heating

Eduardo J. Garcia-Suarez, Patricia Lara, Ana B. Garcia, Manuel Ojeda, Karine Philippot

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Three new hybrid nanocatalysts based on carbon-supported Pd nanoparticles (NPs) were prepared bydecomposition of an organometallic palladium precursor under H2atmosphere in the presence of carbonmaterials with different surface and textural properties. The so-obtained Pd NPs displayed mean sizes inthe range of 2–2.5 nm. The hybrid nanocatalysts were evaluated in the aqueous Suzuki–Miyaura cross-coupling reaction under both conventional and microwave heating. Excellent activities were obtainedat short reaction times (5–10 min) reaching TOF values up to 3000 h−1under microwave radiation.Recycling studies showed that the nanocatalysts could be re-used up to 10 (conventional heating) and to5 (microwave irradiation) reaction cycles without any loss of activity. The reaction media was found tohave a strong influence on the recyclability of the nanocatalysts, which could be improved in the presenceof polyethylene glycol.
Original languageEnglish
JournalApplied Catalysis A: General
Volume468
Pages (from-to)59– 67
ISSN0926-860X
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Palladium nanoparticles
  • Heterogeneous catalysts
  • Microwave heating
  • Suzuki cross-coupling
  • Carbon materials

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