Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

Cuong Cao, Sungho Park, Sang Jun Sim

Research output: Contribution to journalArticle

30 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
Externally publishedYes

Fingerprint

Surface-Active Agents
Gold
Surface active agents
surfactants
gold
Nanoparticles
Crystalline materials
nanoparticles
ascorbic acid
Ascorbic acid
Growth kinetics
synthesis
Ultraviolet spectroscopy
hydrogen peroxide
Hydrogen peroxide
Hydrogen Peroxide
Ascorbic Acid
bromides
flat surfaces
X ray photoelectron spectroscopy

Keywords

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

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase. / Cao, Cuong; Park, Sungho; Sim, Sang Jun.

In: Journal of Colloid and Interface Science, Vol. 322, No. 1, 01.06.2008, p. 152-157.

Research output: Contribution to journalArticle

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