Exfoliated Tungsten Disulfide-Polypyrrole Nanocomposites

Exfoliated tungsten disulfide-polypyrrole nanocomposites were synthesized via an in-situ polymerization method and characterized by techniques such as powder X-ray diffraction, thermogravimetric analysis, Seebeck coefficient, and electronic conductivity measurements. The electronic conductivity was found to decrease as the mass % of tungsten disulfide (WS₂) in the nanocomposites was increased. The Seebeck coefficients on the synthesized materials were small and positive, suggesting that the bulk polypyrrole and synthesized nanocomposites were p-type conductors. Addition of WS₂ to the polypyrrole showed no changes in thermal stability. This paper is the first to explore the electronic conductivity and thermopower properties of exfoliated tungsten disulfide-polypyrrole nanocomposites.