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Water Dispersibility and Temperature Dependence of Electrical Conductivity ofConductive Polypyrrole Nanoparticles Doped with Fulvic Acids
作者:Chao Yang, Peng Liu.
關(guān)鍵字:fulvic acids, Nanoparticles
論文來源:期刊
具體來源:Journal of chemical & engineering data
發(fā)表時(shí)間:2011年

The water-dispersed conductive polypyrrole (PPy) nanoparticles were prepared via the chemical oxidative
polymerization with fulvic acids (FAs), a renewable resource from both soils and municipal waste compost,
as dopant and stabilizer for tuning the properties of polypyrrole nanoparticles. The FA-doped polypyrrole
(PPy/FAs) nanoparticles were characterized with Fourier transform infrared (FTIR), UV vis, thermogravi-
metric analysis (TGA), transmission electron microscopy (TEM), and electric conductivity. The diameters
of the PPy/FAs nanoparticles decreased from (150 to 20) nm with the increasing of the feeding ratio of
FAs, and the PPy/FAs nanoparticles could be well-dispersed in water. Their electrical conductivities were
affected markedly by the amount of the natural dopant added. They have weakly temperature-dependent
conductivity over the entire temperature interval from (283 to 423) K.

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