High yield synthesis of pure alkanethiolate-capped silver nanoparticles

Alessandra Mari, Patrizia Imperatori, Giada Marchegiani, Luciano Pilloni, Alessio Mezzi, Saulius Kaciulis, Carla Cannas, Carlo Meneghini, Settimio Mobilio, Lorenza Suber

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Abstract

One-phase, one-pot synthesis of Ag0 nanoparticles capped with alkanethiolate molecules has been optimized to easily achieve a pure product in quantitative yield. We report the synthesis of dodecanethiolate-capped silver particles and the chemophysical, structural, and morphologic characterization performed by way of UV-vis,1H NMR, and X-ray photoelectron (XPS) spectroscopies, X-ray powder diffraction (XRD) and X-ray absorption fine structure analysis (XFAS), electron diffraction and high-resolution transmission electron microscopy (HR-TEM), and scanning and transmission electron microscopy (SEM and TEM). Depending on the molar ratio of the reagents (dodecylthiosulphate/Ag0), the mean Ag0particle size DXRD is tuned from 4 to 3 nm with a narrow size distribution. The particles are highly soluble, very stable in organic solvents (hexane, toluene, dichloromethane, etc.), and resistant to oxidation; the hexane solution after one year at room temperature does not show any precipitation or formation of oxidation byproducts. © 2010 American Chemical Society.
Original languageEnglish
Pages (from-to)15561 - 15566
Number of pages6
JournalLangmuir
Volume26
Issue number19
DOIs
Publication statusPublished - 5 Oct 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Mari, A., Imperatori, P., Marchegiani, G., Pilloni, L., Mezzi, A., Kaciulis, S., ... Suber, L. (2010). High yield synthesis of pure alkanethiolate-capped silver nanoparticles. Langmuir, 26(19), 15561 - 15566. https://doi.org/10.101/la102062p