SYNTHESIS, STRUCTURE AND ELECTRICAL PROPERTIES OF MOLYBDENUM DISULFIDE / MESOPOROUS CARBON NANOCOMPOSITE

Abstract

Mesoporous carbon, received from a raw material of plant origin and activated with orthophosphoric acid was used as a good supplement for molybdenum disulfide for creation a nanocomposite with improved electrical properties. Synthesized via hydrothermal method using cetyltrimethylammonium cations the composite was characterised by X-ray diffractometry (XRD), Transmission electron microscopy (TEM), Small angle X-ray scattering (SAXS), porosimetry and impedance spectroscopy. Obtained material has a structure of multilayer sheets dispersed in amorphous carbon filling its pores and poses electric conductivity three times higher than of single mesoporous carbon and almost thirteen times than of the commercial MoS 2 (0.51 mS⋅m -1 , 0.18 mS⋅m -1 and 0.038 mS⋅m -1 respectively). Additionaly, the samples were annealed in Ar atmospehere at 500 o C for 2 hours, but it had not significant effect on composite structure, that indicating the temperature stability of the material.