Novel Synthesis and Characterization of PANi/ Sodium Superoxide Composites

Abstract

The sodium superoxide was prepared by heating sodium nitrate (NaNO3) in an oxygen-rich environment in a single step process. Using the Ex-situ technique the PANi/ NaO2 composites were prepared range from 5-20 w t %. The crystallinity and structure morphology of the samples were characterized by X-ray diffraction, Scanning electron microscopy. The peak positions appear in XRD pattern of as prepared Sodium superoxide exactly index to NaO2. The peaks of NaO2 are seen in XRD of PANi/a NaO2 composite suggests that NaO2 is present in the PANi matrix. The scanning electron microscope (SEM) shows that sample exhibit an irregular granular morphology.We investigate the DC conductivity of PANi/ NaO2 composites.Activation energy (EDC) is obtain from Arrhenius plots of temperature-dependent DC conductivity, and it is found to be 0.56 eV for 20 wt. % of NaO2.