Electrical and dielectric properties of MoO3 nanorods and MoO3/rGO nanocomposites

S. Nallani
Pondicherry University,

Keywords: molybdenum trioxide, reduced graphene oxide, nanocomposites, impedance spectroscopy


MoO3 nanorods and MoO3/rGO nanocomposites were prepared by high energy ball-milling followed by ultrasonication method. XRD and Raman results confirm the formation of pure orthorhombic structured α-MoO3 phase without any presence of impurities. FE-SEM images show the formation of rod shape MoO3 nanoparticles with particle size between 100-200 nm in diameter and 1µm length. Raman spectroscopy results further confirm the formation of phase pure MoO3/rGO nanocomposite. Electrical properties of pure MoO3 nanorods and MoO3/rGO nanocomposites were studied through impedance spectroscopy measurement. The observed electrical conductivity at room temperature for pure MoO3 nanorods is 1.46x10-7 S cm-1, MoO3/rGO 10wt% is 8.49x10-6 S cm-1 and MoO3 /rGO 15wt% is 2.23x10-6 S cm-1. Temperature dependent dielectric study of pure MoO3 nanorods and MoO3/rGO nanocomposites were also analyzed. The detailed synthesis, characterization and temperature dependent electrical conductivity and dielectric constant studies will be presented and discussed to find out the suitability of synthesized MoO3/rGO nanocomposite compounds as an anode materials for Lithium-Ion as well as Sodium-Ion Batteries Applications.