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

Hironori Tsunoyama, Nobuyuki Ichikuni, Tatsuya Tsukuda

Research output: Contribution to journalArticle

98 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
Externally publishedYes

Fingerprint

Microfluidics
Gold
Catalyst activity
Alcohols
gold
Oxidation
synthesis
catalytic activity
alcohols
4-hydroxybenzyl alcohol
oxidation

ASJC Scopus subject areas

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

Cite this

Microfluidic synthesis and catalytic application of pvp-stabilized, ∼1 nm gold clusters. / Tsunoyama, Hironori; Ichikuni, Nobuyuki; Tsukuda, Tatsuya.

In: Langmuir, Vol. 24, No. 20, 21.10.2008, p. 11327-11330.

Research output: Contribution to journalArticle

Tsunoyama, Hironori ; Ichikuni, Nobuyuki ; Tsukuda, Tatsuya. / Microfluidic synthesis and catalytic application of pvp-stabilized, ∼1 nm gold clusters. In: Langmuir. 2008 ; Vol. 24, No. 20. pp. 11327-11330.
@article{444865ceb2674dac924d951ea0269b50,
title = "Microfluidic synthesis and catalytic application of pvp-stabilized, ∼1 nm gold clusters",
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.",
author = "Hironori Tsunoyama and Nobuyuki Ichikuni and Tatsuya Tsukuda",
year = "2008",
month = "10",
day = "21",
doi = "10.1021/la801372j",
language = "English",
volume = "24",
pages = "11327--11330",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "20",

}

TY - JOUR

T1 - Microfluidic synthesis and catalytic application of pvp-stabilized, ∼1 nm gold clusters

AU - Tsunoyama, Hironori

AU - Ichikuni, Nobuyuki

AU - Tsukuda, Tatsuya

PY - 2008/10/21

Y1 - 2008/10/21

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=55549114686&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=55549114686&partnerID=8YFLogxK

U2 - 10.1021/la801372j

DO - 10.1021/la801372j

M3 - Article

VL - 24

SP - 11327

EP - 11330

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 20

ER -