Nano Archive

One-step growth of gold nanorods using a β-diketone reducing agent

Tollan, Christopher M. and Echeberria, Jon and Marcilla, Rebeca and Pomposo, José A. and Mecerreyes, David (2009) One-step growth of gold nanorods using a β-diketone reducing agent. Journal of Nanoparticle Research, 11 (5). pp. 1241-1245.

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Official URL: http://www.springerlink.com/content/y666124017l227...

Abstract

The synthesis and characterisation of gold nanorods have been carried out by reduction of the gold salt HAuCl4. This has been done using a single reducing agent, acetylacetone, rather than the two reducing agents, sodium borohydride and ascorbic acid, normally required by standard wet chemistry methods of gold nanorod formation. Using this novel method, the nanorods were synthesised at several different pH values which were found to greatly affect both the rate at which the nanorods form and their physical dimensions. The concentrations of acetylacetone and silver nitrate used relative to the gold salt were found to alter the aspect ratio of the nanorods formed. Rods with an average length of 42 nm and an aspect ratio of 4.6 can be easily and reproducibly formed at pH 10 using this method. Nanorods formed under optimum conditions were investigated using TEM.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nano objects
Material Science > Nanochemistry
ID Code:5578
Deposited By:IoN
Deposited On:29 Jun 2009 15:54
Last Modified:29 Jun 2009 15:54

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