Gold nanoparticles supported on passivated silica: Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold

David Gajan, Kevin Guillois, Pierre Delichère, Jean-Marie Maurice Basset, Jean Pierre Candy, Valérie Caps*, Christophe Copéret, Anne Lesage, Lyndon Emsley

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

(Figure Presented) Well-defined and perfectly dispersed [(≡SiO)AuI] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H2, 300°C) into small (1.8 ± 0.6 nm) Au particles supported on silica passivated with SiMe3 functionalities. Improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.

Original languageEnglish (US)
Pages (from-to)14667-14669
Number of pages3
JournalJournal of the American Chemical Society
Volume131
Issue number41
DOIs
StatePublished - Oct 21 2009

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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