Characterization of un-plasticized and propylene carbonate plasticized carboxymethyl cellulose doped ammonium chloride solid biopolymer electrolytes

Abstract

tTwo solid biopolymer electrolytes (SBEs) systems of carboxymethyl cellulose doped ammonium chlo-ride (CMC-AC) and propylene carbonate plasticized (CMC-AC-PC) were prepared via solution castingtechnique. The ionic conductivity of SBEs were analyzed using electrical impedance spectroscopy (EIS)in the frequency range of 50 Hz–1 MHz at ambient temperature (303 K). The highest ionic conductivityof CMC-AC SBE is 1.43 × 10−3S/cm for 16 wt.% of AC while the highest conductivity of plasticized SBEsystem is 1.01 × 10−2S/cm when added with 8 wt.% of PC. TGA/DSC showed that the addition of PC hadincreased the decomposition temperature compared of CMC-AC SBE. Fourier transform infrared (FTIR)spectra showed the occurrence of complexation between the SBE components and it is proved success-fully executed by Gaussian software. X-ray diffraction (XRD) indicated that amorphous nature of SBEs.It is believed that the PC is one of the most promising plasticizer to enhance the ionic conductivity andperformance for SBE system