Journal of Nanoparticle Research

, Volume 11, Issue 5, pp 1241–1245 | Cite as

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

  • Christopher M. Tollan
  • Jon Echeberria
  • Rebeca Marcilla
  • José A. Pomposo
  • David Mecerreyes
Brief Communication

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.

Keywords

Gold Nanorod β-Diketone Synthesis Wet chemistry Colloids 

Supplementary material

11051_2008_9564_MOESM1_ESM.pdf (65 kb)
MOESM1 (PDF 65 kb)

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Christopher M. Tollan
    • 1
  • Jon Echeberria
    • 2
  • Rebeca Marcilla
    • 1
  • José A. Pomposo
    • 1
  • David Mecerreyes
    • 1
  1. 1.New Materials DepartmentCIDETEC-Centre for Electrochemical Technologies, Parque Tecnológico de San SebastiánDonostia-San SebastiánSpain
  2. 2.CEIT, Centro de Investigaciones Técnicas de GuipuzcoaDonostia-San SebastiánSpain

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