Development And Characterization Of Unplasticized And Plasticized Carboxymethyl Cellulose Doped Oleic Acid Solid Bio-Polymer Electrolytes And Its Application In Rechargeable Proton Battery

Abstract

In this research, two solid bio-polymer electrolyte (SBE) systems of an unplasticized carboxyl methylcellulose doped with oleic acid (CMC–OA) and a similar system plasticized with Glycerol (CMC–OA–Gly) have been successfully prepared by solution casting technique. Both SBEs system were free-standing, transparent with no phase separation films. Fourier Transform Infrared (FTIR) analysis reveals that complexations have occurred between CMC and OA at 2850 cm -1 -1 , 2920 cm -1 and 1597 cm . No significant complexation was observed with the addition of Gly, hence, Gly has acted as a new pathway which helped in the hopping of H + to other coordinating sites of carboxylate anion (COO¯) moiety in CMC. X–Ray Diffraction (XRD) analysis showed the structure of CMC–OA and CMC–OA–Gly as both amorphous. CMC–OA SBE had crystallinity which increased from 9.35 Å to 11.41 Å upon addition of OA till 20 wt. % of OA (OA–20). With the addition of plasticizer (Gly) into CMC–OA SBE, XRD analysis showed that Gly had increased the amorphousness of the SBEs.