Synthesis, characterization, and electrochemical properties of poly(ethylene oxide)-based polyaniline electrolyte complex

Abstract

The polymer electrolyte based poly(ethylene oxide) complexed with conducting polyaniline (PANI) has been prepared in different weight percentages. The complexation is confirmed by Fourier transform infrared spectroscopy (FTIR).The change in morphology is studied by using scanning electron microscopy. The DC conductivity measurements are carried out using Keithley digital multimeter. It is seen that DC conductivity shows exponential behavior for all PEO: PANI complexes. It is observed that among all the PEO: PANI complexes, 50 wt % of PEO in PANI shows highest conductivity. Electrochemical cell parameters for battery applications at room temperature also have been determined. The samples are fabricated for battery application in the configuration of Na:(PEO: PANI):(I 2 + C + sample), and their experimental data are measured using Wagner polarization technique. The cell parameters results in an open-circuit voltage of 0.4 V and a short-circuit current of 902 ?A for PEO: PANI (50: 50) composite. Hence, these composites can be better candidates for the polymer electrolyte studies. Copyright © 2012 Wiley Periodicals, Inc.