Electrochemical performance of polymer blend electrolytes based on chitosan: dextran: impedance, dielectric properties, and energy storage study
Document Type
Article
Publication Date
1-1-2021
Abstract
A facile and efficient methodology was implemented in preparation of plasticized polymer electrolyte with polymer blend of chitosan and dextran from leuconostocmesenteroides impregnated with magnesium acetate using solution cast technique. A number of electrochemical techniques were applied in the characterization of the blend polymer electrolyte, such as cyclic voltammetry (CV), linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), and transference number measurement (TNM). Field emission scanning electron microscopy (FESEM) is used in morphological investigation of impact of plasticizer on films. The X-ray diffraction (XRD) patterns of the plasticized doped samples have shown a significant enhancement in their amorphous nature compared to the pure sample. From the CV, the capacitive behavior of the polymer blend electrolyte was proved. The decomposition potential of the polymer blend electrolyte is determined to be 1.5 V using LSV. The ion transference number (tion) was calculated and found to be 0.979, confirming dominancy of ion conduction in the polymer blend electrolyte system. It is found that ionic conductivity can be enhanced via adding glycerol as plasticizer, which supported the obtained results from both FESEM and XRD studies. To evaluate the EDLC assembly, the specific capacitance was measured as 25.377 F/g using CV curve, with energy and power densities of 7.59 Wh/kg and 520.8 W/kg, respectively. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
Keywords
Electrochemical performance, Electrochemical techniques, Field emission scanning electron microscopy, Ion transference number, Linear sweep voltammetry, Plasticized polymer electrolytes, Specific capacitance, Transference number
Divisions
foundation
Funders
Ministry of Higher Education and Scientific Research-Kurdish National Research Council (KNRC), Kurdistan Regional Government/Iraq,University of Malaya,University of Sulaimani,Prince Sultan University,Komar University of Science and Technology
Publication Title
Journal of Materials Science: Materials in Electronics
Volume
32
Issue
11
Publisher
Springer