Size-Controlled Synthesis of Gold Nanoparticles via High-Temperature Reduction

David A. Fleming, Mary Elizabeth Williams

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Size and dispersity control of metallic nanoparticles is of fundamental necessity for their useful chemical implementation. A single-step synthesis of Au nanoparticles 4-15 nm in diameter and with low polydispersity is presented. Amine-induced reduction of a Au(I) precursor in the presence of coordinating ligands leads to nucleation of small particles which ripen to form larger particles. The rate of particle growth and subsequent aggregation is strongly dependent on the relative concentrations of protecting ligands and is monitored by both transmission electron microscopy and UV-visible absorption spectroscopy.

Original languageEnglish (US)
Pages (from-to)3021-3023
Number of pages3
JournalLangmuir
Volume20
Issue number8
StatePublished - Apr 13 2004

Fingerprint

Gold
Ligands
gold
Nanoparticles
nanoparticles
Polydispersity
synthesis
Absorption spectroscopy
Amines
ligands
Nucleation
Agglomeration
Transmission electron microscopy
Temperature
amines
absorption spectroscopy
nucleation
transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

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Size-Controlled Synthesis of Gold Nanoparticles via High-Temperature Reduction. / Fleming, David A.; Williams, Mary Elizabeth.

In: Langmuir, Vol. 20, No. 8, 13.04.2004, p. 3021-3023.

Research output: Contribution to journalArticle

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