Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

Cuong Cao; Sungho Park; Sang Jun Sim

doi:10.1016/j.jcis.2008.03.031

Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

Cuong Cao, Sungho Park, Sang Jun Sim

Research output: Contribution to journal › Article › peer-review

36 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 language	English
Pages (from-to)	152-157
Number of pages	6
Journal	Journal of Colloid and Interface Science
Volume	322
Issue number	1
DOIs	https://doi.org/10.1016/j.jcis.2008.03.031
Publication status	Published - 2008 Jun 1
Externally published	Yes

Bibliographical note

Funding Information:
This work is supported by Ministry of Environment as “The Eco-technopia 21 project” and Korea Institute of Environmental Science and Technology (KIEST).

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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10.1016/j.jcis.2008.03.031

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title = "Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase",

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.",

keywords = "Gold nanoparticles, HO-dependent growth, Non-seeding process, Octahedra, Template-directed synthesis",

author = "Cuong Cao and Sungho Park and Sim, {Sang Jun}",

note = "Funding Information: This work is supported by Ministry of Environment as “The Eco-technopia 21 project” and Korea Institute of Environmental Science and Technology (KIEST).",

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T1 - Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

AU - Cao, Cuong

AU - Park, Sungho

AU - Sim, Sang Jun

N1 - Funding Information: This work is supported by Ministry of Environment as “The Eco-technopia 21 project” and Korea Institute of Environmental Science and Technology (KIEST).

PY - 2008/6/1

Y1 - 2008/6/1

N2 - 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.

AB - 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.

KW - Gold nanoparticles

KW - HO-dependent growth

KW - Non-seeding process

KW - Octahedra

KW - Template-directed synthesis

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VL - 322

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EP - 157

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 1

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Seedless synthesis of octahedral gold nanoparticles in condensed surfactant phase

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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