Fuzlin, Ahmad Faizrin and Mazuki, Norfatihah F. and Khan, Nurhasniza Mamajan and Mohd. Ali, Noor Saadiah and Hasan, Md M. and Nagao, Yuki and Samsudin, A. S. (2022) Studies on the ions transportation behavior of alginate doped with H+ carrier-based polymer electrolytes. Materials Chemistry and Physics, 287. ISSN 0254-0584 E-ISSN 1879-3312
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Abstract
In the present work, amorphous bio-based polymer electrolytes (BBPEs) using alginate polymer as a matrix host and doped with varying amounts of ammonium iodide (NH4I) have been developed via the solution casting technique. The physicochemical properties of alginate-NH4I BBPEs were evaluated by using X-Ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), electrical impedance spectroscopy (EIS), and transference number measurement (TNM). The BBPEs film containing 25 wt % of NH4I possessed the highest ionic conductivity of 1.29 × 10−4 S cm−1, the highest amorphous phase, and good thermal stability of up to 234 °C. Based on the Nyquist fitting approaches, the ionic conductivity of the BBPEs was primarily influenced by the ion transportation, which was due to the interplay of segmental motion between the alginate and NH4I, and also the H+ hopping mechanism, as shown by FTIR. The proton transference number (tH+ = 0.41) suggests that alginate BBPEs are promising materials in electrochemical device applications.
| Item Type: | Article (Journal) |
|---|---|
| Uncontrolled Keywords: | alginateProton (H+)Amorphous polymer electrolyteThermal stabilityIonic conductivity |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Centre for Foundation Studies |
| Depositing User: | Dr. Noor Saadiah Mohd Ali |
| Date Deposited: | 19 Jan 2023 12:49 |
| Last Modified: | 03 Feb 2023 15:32 |
| URI: | http://irep.iium.edu.my/id/eprint/103220 |
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