Microfluidic synthesis and catalytic application of pvp-stabilized, ∼1 nm gold clusters

Hironori Tsunoyama, Nobuyuki Ichikuni, Tatsuya Tsukuda

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

Small PVP-stabilized gold clusters were successfully prepared by the homogeneous mixing of continuous flows of aqueous AuCl4- and BH4- in a micromixer. Spectroscopic characterization revealed that microfluidic synthesis could yield monodisperse Au:PVP clusters with an average diameter of ∼1 nm, which is smaller than clusters produced by conventional batch methods. These ∼1 nm Au:PVP clusters exhibited higher catalytic activity for the aerobic oxidation of p-hydroxybenzyl alcohol than did Au:PVP clusters prepared by batch methods.

Original languageEnglish
Pages (from-to)11327-11330
Number of pages4
JournalLangmuir
Volume24
Issue number20
DOIs
Publication statusPublished - 2008 Oct 21

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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