Synthesis and characterization of long gold nanorods

Ru Shi Liu; Hao Ming Chen; Shu Fen Hu

doi:10.1002/tee.20192

Synthesis and characterization of long gold nanorods

Ru Shi Liu, Hao Ming Chen, Shu Fen Hu^*

^*Corresponding author for this work

Department of Physics

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

1 Citation (Scopus)

Abstract

A new approach to fabricate long gold nanorods by controlling the volume of the growth solution is reported. Shapes ranging from fusiform nanoparticles to ID rods were observed to evolve. Increasing the growth solution can control the length of the nanorods. The length of the rods could be extended to 2 μm, and nanorods with aspect ratios of up to ∼70 could be obtained. Moreover, X-ray absorption spectroscopy (XAS) was used to elucidate the growth mechanism of gold nanorods. The gold ions were directly reduced to gold atoms by ascorbic acid during the reaction, and the gold atoms were deposited on the surface of gold seeds, which were introduced into the reaction. Extended X-ray absorption fine structure (EXAFS) confirmed the growth of gold and the environment around Au atoms during the reaction. XAS is expected to have wide applications in the growth of gold and other related materials.

Original language	English
Pages (from-to)	468-472
Number of pages	5
Journal	IEEJ Transactions on Electrical and Electronic Engineering
Volume	2
Issue number	4
DOIs	https://doi.org/10.1002/tee.20192
Publication status	Published - 2007 Jul

Keywords

Gold
Nanorods
X-ray absorption spectroscopy

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1002/tee.20192

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title = "Synthesis and characterization of long gold nanorods",

abstract = "A new approach to fabricate long gold nanorods by controlling the volume of the growth solution is reported. Shapes ranging from fusiform nanoparticles to ID rods were observed to evolve. Increasing the growth solution can control the length of the nanorods. The length of the rods could be extended to 2 μm, and nanorods with aspect ratios of up to ∼70 could be obtained. Moreover, X-ray absorption spectroscopy (XAS) was used to elucidate the growth mechanism of gold nanorods. The gold ions were directly reduced to gold atoms by ascorbic acid during the reaction, and the gold atoms were deposited on the surface of gold seeds, which were introduced into the reaction. Extended X-ray absorption fine structure (EXAFS) confirmed the growth of gold and the environment around Au atoms during the reaction. XAS is expected to have wide applications in the growth of gold and other related materials.",

keywords = "Gold, Nanorods, X-ray absorption spectroscopy",

author = "Liu, {Ru Shi} and Chen, {Hao Ming} and Hu, {Shu Fen}",

year = "2007",

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T1 - Synthesis and characterization of long gold nanorods

AU - Liu, Ru Shi

AU - Chen, Hao Ming

AU - Hu, Shu Fen

PY - 2007/7

Y1 - 2007/7

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AB - A new approach to fabricate long gold nanorods by controlling the volume of the growth solution is reported. Shapes ranging from fusiform nanoparticles to ID rods were observed to evolve. Increasing the growth solution can control the length of the nanorods. The length of the rods could be extended to 2 μm, and nanorods with aspect ratios of up to ∼70 could be obtained. Moreover, X-ray absorption spectroscopy (XAS) was used to elucidate the growth mechanism of gold nanorods. The gold ions were directly reduced to gold atoms by ascorbic acid during the reaction, and the gold atoms were deposited on the surface of gold seeds, which were introduced into the reaction. Extended X-ray absorption fine structure (EXAFS) confirmed the growth of gold and the environment around Au atoms during the reaction. XAS is expected to have wide applications in the growth of gold and other related materials.

KW - Gold

KW - Nanorods

KW - X-ray absorption spectroscopy

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Synthesis and characterization of long gold nanorods

Abstract

Keywords

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