Catalytic colloidal Pd dispersions in water-organic solutions of quaternary ammonium salt

Y. Berkovich*, Nissim Garti

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

40 Scopus citations

Abstract

Colloidal Pd prepared in a water-organic microemulsion in the presence of the cationic surfactant aliquat 336 (trioctylmethylammonium chloride) is useful for the transfer hydrogenolysis of bromotoluene with sodium formate. The Pd catalytic activity is strongly dependent on the particle dimension, being highest for the smallest particles. The size of the particles is determined by the preparation conditions: coarser particles are formed at higher water contents and lower temperatures. The reaction obeys the mechanism of micellar catalysis.

Original languageEnglish
Pages (from-to)91-99
Number of pages9
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume128
Issue number1-3
DOIs
StatePublished - 1 Aug 1997
EventProceedings of the 1996 11th International Symposium on Surfactants in Solution - Jerusalem, Isr
Duration: 1 Jun 19961 Jun 1996

Keywords

  • Catalysis
  • Dispersions
  • Formates
  • Microemulsion
  • Nanoparticles
  • Palladium
  • TEM
  • UV spectrophotometry

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