Single Step Solid-Solid Reaction Scheme for the Synthesis of Cobalt Sulphide-Oxide Nanoparticles in Polymer Matrix

Narendra Rumale, Sudhir Arbuj, Govind Umarji, Manish Shinde, Uttamrao Mulik, Anuj Pokle, Dinesh Amalnerkar

Centre for Materials for Electronics Technology (C-MET), Panchawati, India.
ELANTAS Beck India Ltd., Pimpri, India.
Icon Analytical Equipment Pvt. Ltd., Mumbai, India.

DOI: 10.4236/anp.2013.21006                

Abstract

At present, there is considerable interest in polymer-metal chalcogenides/oxides based nano-composites on account of their tunable optical, magnetic, electronic and catalytic properties. Here in, we report a simple single step approach for the in-situ synthesis of combined cobalt sulphide/cobalt oxide in polyphenylenesulphide (PPS) polymer matrix. We have illustrated the suitability of this methodology by reacting commonly available cobalt precursors with engineering thermoplastic, PPS. The cobalt precursor was homogeneously mixed with PPS in the molar ratios of 1:1, 1:5, 1:10, 1:15, respectively, followed by heating the mixtures obtained at the melting temperature of the polymer (285?C) for six hours. The resultant products were characterized by X-ray Diffractometry (XRD), Field-Emission Scanning Electron Microscopy (FESEM), High Resolution Transmission Electron Microscope (HRTEM), Diffuse Reflectance Spectroscopy (DRS) technique and Fourier Transformation Infra red Spectroscopy (FTIR). Formation of mixed phases viz., sulphide and oxide of cobalt within modified PPS matrix was confirmed by XRD. The resultant nanoparticles of cobalt sulphide and cobalt oxide embedded in the PPS matrix showed crooked and chunk morphology. The optical properties of the resultant nanocomposites indicate the shift in the absorption hump due to nanoscale size effect.

Keywords

Polymers; Nanocomposites; Cobalt Sulphide/Oxide; Solid-Solid Reaction

Conflicts of Interest

The authors declare no conflicts of interest.

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