Preparation and characterization of gold nanodumbbells

Chien Jung Huang, Pin Hsiang Chiu, Yeong Her Wang, Wen Ray Chen, Teen Hang Meen, Cheng Fu Yang

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

Well-dispersed gold nanodumbbells (GNDs) in an aqueous phase have been successfully fabricated by an electrochemical method using a micelle template formed by two surfactants with the addition of acetone solvent during electrolysis, the primary surfactant being cetyltrimethylammonium bromide (CTABr) and the cosurfactant being tetradecyltrimethylammonium bromide (TTABr). The role of acetone solvent is found to change the gold nanoparticles' shape from a rod to a dumbbell. The shape of the GNDs is fatter at the two ends and thinner in the middle section. The GNDs have been determined to be pure gold with a single-crystalline face-centred cubic (FCC) structure from selected area electron diffraction (SAED) patterns. Morphology features of GNDs in cross-section have also been investigated by dark field (DF) transmission electron microscopy (TEM) images. These GNDs exhibit octagonal structure in cross-section and an aspect ratio of around 3.

原文English
文章編號012
頁(從 - 到)5355-5362
頁數8
期刊Nanotechnology
17
發行號21
DOIs
出版狀態Published - 2006 十一月 14

All Science Journal Classification (ASJC) codes

  • 生物工程
  • 化學 (全部)
  • 材料科學(全部)
  • 材料力學
  • 機械工業
  • 電氣與電子工程

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