Abdukarimov, Abdullaziz and Noor, Ikhwan Syafiq Mohd and Mamatkarimov, Odiljon and Arof, Abdul Kariem Mohd and Arof, Abdul Kariem (2022) Influence of charge carrier density, mobility and diffusivity on conductivity-temperature dependence in polyethylene oxide-based gel polymer electrolytes. High Performance Polymers, 34 (2). pp. 232-241. ISSN 0954-0083, DOI https://doi.org/10.1177/09540083211052841.
Full text not available from this repository.Abstract
Determining the transport properties of charge carriers is essential to understand the factors that affect the conductivity trend of a polymer electrolyte system. In this work, charge carrier transport parameters of polyethylene oxide-based gel polymer electrolytes were estimated from fitting the Nyquist plot with the impedance equation, derived from the equivalent circuit that consists of a resistor in series with a constant phase element. The increase in electrolyte conductivity with temperatures from 303 K to 373 K is attributed to the increase of free ions, n (TPA(+) cations and I- over bar anions) and not to ionic mobility, mu. The decrease in mu with temperature is associated with the increase in the Stokes drag coefficient due to increase in ion collisions. This work explains how conductivity changes with number density of ions and mobility at various temperatures.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education of Malaysia through the FRGS grant[FRGS/1/2020/STG05/UPM/02/1] |
| Uncontrolled Keywords: | Electrical impedance spectroscopy;Equivalent circuit model; Conductivity-temperature dependence;Charge carrier concentration;Ionic mobility;Stokes drag coefficient |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 25 Jul 2022 03:18 |
| Last Modified: | 25 Jul 2022 03:18 |
| URI: | http://eprints.um.edu.my/id/eprint/33704 |
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