Two types of polypyirol/molybdenum disulfide nanocomposite were prepared by means of in situ polymerization of the intercalated monomers.The nanocomposites were characterized by means of powder X-ray diffraction,Fourier transformation infrared spectroscopy,scanning electron microscopy and transmission electron microscopy.The charge transport properties of the nanocomposites were determined by four-probe electrical conductivity measurement of pressed pellet samples.The relationship between the electrical conductivity at various temperatures and conformation of the polypyrrol/molybdenum disulfide nanocomposites were investigated.Results indicated that polypyrrol took two kinds of conformation in the interlayer of MoS_2.The electrical conductivity of the intercalation nanocomposites at room temperature was dependent on the conformation and stereo-regular characteristics of the polypyrrol molecules in the MoS_2 layers;it was mainly determined by the number of the active charge carriers in polypyrrol at-60deg C.The intercalation of polypyrrol into MoS_2 led to an increase in the electrical conductivity by six orders of magnitude.
展开▼
