Dendrimer templates for supported Au catalysts

Rachel J. Korkosz, John D. Gilbertson, Kristin S. Prasifka, Bert D. Chandler

Research output: Contribution to journalArticlepeer-review

Abstract

Dendrimer templated thiol stabilized gold nanoparticles were evaluated as potential precursors for supported gold catalysts. Gold nanoparticles were prepared in hydroxyl- or alkyl-terminated polyamidoamine dendrimers. The nanoparticles were then extracted from the dendrimer interior with an appropriate hydrophilic or hydrophobic thiol. After deposition onto commercial titania, a variety of conditions were evaluated for removing the thiols. Desorption under nitrogen flows was most appropriate for alkyl thiols, whereas a hydrogen in nitrogen treatment gave the best results for amide containing thiols. CO oxidation catalysis by the resulting supported nanoparticles compared favorably with a standard gold test catalyst.

Original languageEnglish (US)
Pages (from-to)370-377
Number of pages8
JournalCatalysis Today
Volume122
Issue number3-4
DOIs
StatePublished - Apr 30 2007

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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