Emulsion Synthesis and Electrophoretic Concentration of Gold Nanoparticles in Sodium Bis(2-Ethylhexyl) Sulfosuccinate Solution in n-Decane

N. O. Shaparenko, A. T. Arymbaeva, M. G. Demidova, P. E. Plyusnin, A. N. Kolodin, E. A. Maksimovskii, I. V. Korol’kov, A. I. Bulavchenko

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4 Citations (Scopus)

Abstract

Abstract: Organosols of gold nanoparticles are obtained by hydrazine reduction of a chloroauric acid solution in a dynamic emulsion of water in n-decane stabilized with a surfactant, sodium bis(2-ethylhexyl) sulfosuccinate. The gold nanoparticles are characterized by phase analysis light scattering, photon correlation spectroscopy, transmission and scanning electron microscopy, X-ray phase analysis, spectrophotometry, thermal analysis, and elemental analyses. The hydrodynamic diameter (≈8 nm), electrophoretic mobility (3.9 × 10–10 m2/(V s)), and electrokinetic potential (30 mV) of the synthesized particles are determined. A liquid-phase concentrate of nanoparticles is separated from the organosol by nonaqueous electrophoresis. Hydrophobic electrically conducting films with a contact angle of 115° and a specific resistance of 0.41 Ω/mm2 are obtained by the thermal treatment of the concentrate.

Original languageEnglish
Pages (from-to)478-486
Number of pages9
JournalColloid Journal
Volume81
Issue number4
DOIs
Publication statusPublished - 1 Jul 2019

Keywords

  • REVERSE MICROEMULSIONS
  • MICELLES

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