Abstract
Liquid concentrates of silver and gold nanoparticles with 1–2 M metal concentrations were isolated by electrophoresis in a capacitor-type cell from AOT reverse micellar solutions in n-decane. The electrophoretic concentrates and the starting micellar solutions were characterized by nonaqueous electrophoresis, transmission electron microscopy, photon correlation spectroscopy (dynamic light scattering), and spectrophotometry. The hydrodynamic diameter of silver and gold nanoparticles was 13.2 and 8.6 nm, respectively; the ζ-potential was 70 and 13 mV. The drying of the concentrates on glass and silicon substrates and subsequent treatment with a 30% solution of water in ethanol gave mirror conducting Ag, Au, Ag-Au, and Au/Ag films containing on the average 80% metal and 20 wt % AOT. The film structure, morphology, and composition were studied by scanning electron microscopy (SEM) and energy dispersion analysis (EDX).
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Original Russian Text © A.I. Bulavchenko, P.S. Popovetskiy, E.A. Maksimovskiy, 2013, published in Zhurnal Fizicheskoi Khimii, 2013, Vol. 87, No. 10, pp. 1779–1784.
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Bulavchenko, A.I., Popovetskiy, P.S. & Maksimovskiy, E.A. Properties of conducting films of electrophoretic concentrates of silver and gold nanoparticles in AOT surfactant. Russ. J. Phys. Chem. 87, 1756–1761 (2013). https://doi.org/10.1134/S0036024413100063
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DOI: https://doi.org/10.1134/S0036024413100063