Non-Faradaic-based supercapacitor fabricated with fish skin gelatin biopolymer electrolyte

Kadir, Mohd Fakhrul Zamani (2021) Non-Faradaic-based supercapacitor fabricated with fish skin gelatin biopolymer electrolyte. Ionics, 27 (5). pp. 2219-2229. ISSN 0947-7047, DOI

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Fish gelatin (FS)-based polymer electrolytes doped with lithium perchlorate (LiClO4) are prepared via the solution cast method. The ionic conductivity of undoped pure FS film has been identified to be (9.29 +/- 0.89) x 10(-11) S cm(-1) and increased to (3.58 +/- 0.58) x 10(-6) S cm(-1) with the inclusion of 25 wt.% LiClO4 where this conductivity is mainly by ions due to the condition of t(e) < t(i). X-ray diffraction (XRD) analysis showed that 25 wt.% LiClO4 provides the most amorphous electrolyte. From the Fourier transform infrared (FTIR) spectroscopy, the shifting of amide A functional group peak indicates that cations from LiClO4 have formed interaction with the polymer. FS-LiClO4 electrolyte has been found to be electrochemically stable up to 1.88 V via linear sweep voltammetry (LSV). An electrical double-layer capacitor (EDLC) has been tested for 150 cycles where the specific capacitance at the 1(st) cycle is 28.2 F g(-1).

Item Type: Article
Funders: Universiti Malaya, Ministry of Education, Malaysia (FP039-2019A)
Uncontrolled Keywords: Fish skin gelatin; Lithium; Natural polymer; Energy storage; EDLC
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Centre for Foundation Studies in Science
Depositing User: Ms Zaharah Ramly
Date Deposited: 21 Apr 2022 06:24
Last Modified: 21 Apr 2022 06:24

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