Aziz, Shujahadeen B. and Dannoun, Elham M. A. and Hamsan, M. H. and Abdulwahid, Rebar T. and Mishra, Kuldeep and Nofal, Muaffaq M. and Kadir, M. F. Z. (2021) Improving EDLC device performance constructed from plasticized magnesium ion conducting chitosan based polymer electrolytes via metal complex dispersion. Membranes, 11 (4). ISSN 2077-0375, DOI https://doi.org/10.3390/membranes11040289.
Full text not available from this repository.Abstract
The current work shows the preparation of plasticized chitosan-magnesium acetate Mg(CH3COO)(2)-based polymer electrolyte dispersed with nickel (Ni) metal complexes via solution casting. Investigations of electrical and electrochemical properties of the prepared polymer composite electrolyte were carried out. The structural and optical properties of the samples were studied using X-ray diffraction (XRD) and UV-Vis spectroscopy techniques. The structural and optical outcomes revealed a clear enhancement in both absorbance and amorphous nature of the samples upon the addition of Ni metal complexes. Through the simulation of impedance data, various ion transport parameters were calculated. The electrochemical performance of the sample was examined by means of transference number measurement (TNM), linear sweep voltammetry (LSV) and cyclic voltammetry (CV) measurements. The TNM analysis confirmed the dominance of ions as the main charge carrier in the electrolyte with t(ion) of (0.96) compared to only (0.04) for t(el). The present electrolyte was stable in the range of 0 V to 2.4 V, which was obtained from linear sweep voltammetry (LSV). A result from CV proved that the electrical double-layer capacitor (EDLC) has a capacitive behavior as no redox peaks could be observed. The presence of Ni improved the charge-discharge cycle of the EDLC due to its amorphous behavior. The average performances of the EDLC were recorded as 41.7 F/g, 95%, 5.86 Wh/kg and 628 W/kg for specific capacitance, coulombic efficiency, energy and power densities, respectively. The fabricated EDLC device was found to be stable up to 1000 cycles.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Plasticized polymer electrolyte; Metal complex; Structural analysis; Impedance study; TNM and LSV analysis; CV; EDLCdevice |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Centre for Foundation Studies in Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 20 Apr 2022 08:06 |
| Last Modified: | 20 Apr 2022 08:06 |
| URI: | http://eprints.um.edu.my/id/eprint/28730 |
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