The Study of Growth Mechanism of Gold Nanorods

Ru-Shi Liu 1Hao Ming Chen 1Shu-Fen Hu 2Stansiław Filipek 3

1. National Taiwan University, Department of Chemistry, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan
2. National Nano Device Laboratories (NDL), No. 26, Prosperity Road I, Science-based Industrial Park, Hsinchu 30078, Taiwan
3. Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, Warszawa 01-224, Poland

Abstract

A new approach to fabricate long length of gold nanorods by controlling the volume of growth solution will be reported. The shape evolutions ranging from fusiform nanoparticles to 1-D rods were observed. Increasing the addition of growth solution can control the length of nanorods. The length of rods can be extended to 2 μm, and nanorods with aspect ratios of up to ~ 70 could be obtained. Moreover, X-ray absorption spectroscopy (XAS) is applied herein to elucidate the growth mechanism of gold nanorods. The gold ions were directly reduced to gold atoms by ascorbic acid during the reaction, and then gold atoms were deposited on the surface of gold seeds that were introduced into the reaction. Extended X-ray absorption fine structure (EXAFS) confirmed the growth of gold and the environment around Au atoms over the reaction. The XAS are expected to have wide applications in the growth of gold and other related materials.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/7599 must be provided.

 

Related papers
  1. Research on Metal-Hydrogen Systems by Using High Pressure Techniques

Presentation: Poster at E-MRS Fall Meeting 2006, Symposium B, by Ru-Shi Liu
See On-line Journal of E-MRS Fall Meeting 2006

Submitted: 2006-05-11 23:27
Revised:   2009-06-07 00:44
Google
 
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine