Electrochemically controlling the size of gold nanoparticles

Chien Jung Huang, Pin Hsiang Chiu, Yeong Her Wang, Kan Lin Chen, Jing Jenn Linn, Cheng Fu Yang

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

This work demonstrates the electrochemical synthesis of nanoscale gold particles using a surfactant solution. Tetradodecylammonium bromide (TTAB) surfactant was applied to stabilize the gold clusters. Experimental results reveal that the size of the produced gold nanoparticles is controlled by the amount of TTAB surfactant, the current density, and the growth temperature. The size of the gold nanoparticles can be controlled in the range 58.3-8.3 nm. The particle size decreases as the amount of TTAB increases from 1 to 90 mg. The optimal current density in this study was 3 mA cm2. The size of the produced nanoparticles increases linearly with the growth temperature from 25 to 60°C. The gold nanoparticles were observed by transmission electron microscopy, ultraviolet-visible spectrometry, and X-ray photoelectron spectroscopy. A mechanism for electrochemically controlling the size of the gold nanoparticles is presented.The Electrochemical Society

Original languageEnglish
Article number049612JES
Pages (from-to)D193-D198
JournalJournal of the Electrochemical Society
Volume153
Issue number12
DOIs
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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