Abstract
Well-dispersed gold nanodumbbells (GNDs) in an aqueous phase have been successfully fabricated by an electrochemical method using a micelle template formed by two surfactants with the addition of acetone solvent during electrolysis, the primary surfactant being cetyltrimethylammonium bromide (CTABr) and the cosurfactant being tetradecyltrimethylammonium bromide (TTABr). The role of acetone solvent is found to change the gold nanoparticles' shape from a rod to a dumbbell. The shape of the GNDs is fatter at the two ends and thinner in the middle section. The GNDs have been determined to be pure gold with a single-crystalline face-centred cubic (FCC) structure from selected area electron diffraction (SAED) patterns. Morphology features of GNDs in cross-section have also been investigated by dark field (DF) transmission electron microscopy (TEM) images. These GNDs exhibit octagonal structure in cross-section and an aspect ratio of around 3.
| Original language | English |
|---|---|
| Article number | 012 |
| Pages (from-to) | 5355-5362 |
| Number of pages | 8 |
| Journal | Nanotechnology |
| Volume | 17 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2006 Nov 14 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering
Cite this
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Preparation and characterization of gold nanodumbbells. / Huang, Chien Jung; Chiu, Pin Hsiang; Wang, Yeong-Her; Chen, Wen Ray; Meen, Teen Hang; Yang, Cheng Fu.
In: Nanotechnology, Vol. 17, No. 21, 012, 14.11.2006, p. 5355-5362.Research output: Contribution to journal › Article
TY - JOUR
T1 - Preparation and characterization of gold nanodumbbells
AU - Huang, Chien Jung
AU - Chiu, Pin Hsiang
AU - Wang, Yeong-Her
AU - Chen, Wen Ray
AU - Meen, Teen Hang
AU - Yang, Cheng Fu
PY - 2006/11/14
Y1 - 2006/11/14
N2 - Well-dispersed gold nanodumbbells (GNDs) in an aqueous phase have been successfully fabricated by an electrochemical method using a micelle template formed by two surfactants with the addition of acetone solvent during electrolysis, the primary surfactant being cetyltrimethylammonium bromide (CTABr) and the cosurfactant being tetradecyltrimethylammonium bromide (TTABr). The role of acetone solvent is found to change the gold nanoparticles' shape from a rod to a dumbbell. The shape of the GNDs is fatter at the two ends and thinner in the middle section. The GNDs have been determined to be pure gold with a single-crystalline face-centred cubic (FCC) structure from selected area electron diffraction (SAED) patterns. Morphology features of GNDs in cross-section have also been investigated by dark field (DF) transmission electron microscopy (TEM) images. These GNDs exhibit octagonal structure in cross-section and an aspect ratio of around 3.
AB - Well-dispersed gold nanodumbbells (GNDs) in an aqueous phase have been successfully fabricated by an electrochemical method using a micelle template formed by two surfactants with the addition of acetone solvent during electrolysis, the primary surfactant being cetyltrimethylammonium bromide (CTABr) and the cosurfactant being tetradecyltrimethylammonium bromide (TTABr). The role of acetone solvent is found to change the gold nanoparticles' shape from a rod to a dumbbell. The shape of the GNDs is fatter at the two ends and thinner in the middle section. The GNDs have been determined to be pure gold with a single-crystalline face-centred cubic (FCC) structure from selected area electron diffraction (SAED) patterns. Morphology features of GNDs in cross-section have also been investigated by dark field (DF) transmission electron microscopy (TEM) images. These GNDs exhibit octagonal structure in cross-section and an aspect ratio of around 3.
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U2 - 10.1088/0957-4484/17/21/012
DO - 10.1088/0957-4484/17/21/012
M3 - Article
VL - 17
SP - 5355
EP - 5362
JO - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 21
M1 - 012
ER -