Abstract
This paper presents a facile method for decreasing the size of water dispersible Ninanoparticles from 30 to 3 nm by the incorporation of a passivating surfactant combinationof pluronic triblock copolymer and oleic acid into a wet chemical reduction synthesis. Adetailed study revealed that the size of the Ni nanoparticles is not only criticallygoverned by the concentration of the triblock copolymers but also dependent on thehydrophobic nature of the micelle core formed. The synthesized Ni nanoparticles werethoroughly characterized by means of transmission electron microscopy, x-raydiffraction, x-ray photoelectron spectroscopy and temperature and field dependentmagnetic measurements, along with a comprehensive Fourier transform infraredspectroscopy analysis, in order to predict a possible mechanism of formation.
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