Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

Cuong Cao, Sungho Park, Sang Jun Sim

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We report a seedless synthetic method of gold octahedral nanoparticles in an aqueous phase. Eight facets with {111} crystalline structures of octahedral nanoparticles could be formed in an aqueous medium when the gold salt was reduced by ascorbic acid at room temperature in the presence of cetyltrimethylammonium bromide as a shape-inducing agent, and hydrogen peroxide as a reaction promoter. The growth kinetics and surface crystalline structures were characterized by UV-vis spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy.

Original languageEnglish
Pages (from-to)152-157
Number of pages6
JournalJournal of Colloid and Interface Science
Volume322
Issue number1
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • Gold nanoparticles
  • HO-dependent growth
  • Non-seeding process
  • Octahedra
  • Template-directed synthesis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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