Abstract

Stable Nickel nanoparticles have been synthesized by a novel synthetic route based on the reduction of NiCl 2 ionic clusters in the confined space of reversed micelles. The reaction was carried out by adding anhydrous NaBH 4/ethanol solution to a solution of NiCl 2 ionic clusters nanoencapsulated in bis(2-ethylhexyl)sulfosuccinate (AOT) reversed micelles in the presence of n-dodecylmercaptane as capping agent. As highlighted by FT-IR, an extraction with water eliminates surfactant and side products leaving lipophilic Nickel nanoparticles to be dispersed in the organic solvent. UV–Vis investigation ascertained the formation of stable metal Nickel nanoparticles exhibiting novel optical properties.

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