Studies on the ions transportation behavior of alginate doped with H+ carrier-based polymer electrolytes

Ahmad Faizrin, Fuzlin and Nor Fatihah, Mazuki and Nurhasniza, Mamajan Khan and Saadiah, M. A. and Hasan, Md. M. and Nagao, Y. and Ahmad Salihin, Samsudin (2022) Studies on the ions transportation behavior of alginate doped with H+ carrier-based polymer electrolytes. Materials Chemistry and Physics, 287 (126207). pp. 1-12. ISSN 0254-0584. (Published)

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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
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Alginate; Proton (H+); Amorphous polymer electrolyte; Thermal stability; Ionic conductivity
Subjects:	Q Science > Q Science (General) Q Science > QC Physics Q Science > QD Chemistry
Faculty/Division:	Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies
Depositing User:	Dr. Ahmad Salihin Samsudin
Date Deposited:	27 Dec 2022 02:24
Last Modified:	04 Oct 2023 03:42
URI:	http://umpir.ump.edu.my/id/eprint/35858
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