Hamsan, Muhamad Hafiz and Halim, Norhana Abdul and Demon, Siti Zulaikha Ngah and Sa'aya, Nurul Syahirah Nasuha and Abdul Kadir, Mohd Fakhrul Zamani and Zainal Abidin, Zul Hazrin and Poad, Nursaadah Ahmad and Abu Kasim, Nurul Farhana and Razali, Nur Amira Mamat and Aziz, Shujahadeen B. and Ahmad, Khairol Amali and Miskon, Azizi and Nor, Norazman Mohamad (2022) Multifunction web-like polymeric network bacterial cellulose derived from SCOBY as both electrodes and electrolytes for pliable and low-cost supercapacitor. Polymers, 14 (15). ISSN 2073-4360, DOI https://doi.org/10.3390/polym14153196.
Full text not available from this repository.Abstract
In this work, bacterial cellulose (BC)-based polymer derived from a symbiotic culture of bacteria and yeast (SCOBY) are optimized as both electrodes and electrolytes to fabricate a flexible and free-standing supercapacitor. BC is a multifunction and versatile polymer. Montmorillonite (MMT) and sodium bromide (NaBr) are used to improve mechanical strength and as the ionic source, respectively. From XRD analysis, it is found that the addition of MMT and NaBr has reduced the crystallinity of the electrolyte. Most interaction within the electrolyte happens in the region of the OH band, as verified using FTIR analysis. A maximum room temperature conductivity of (1.09 +/- 0.02) x 10(-3) S/cm is achieved with 30 wt.% NaBr. The highest conducting SCOBY-based electrolytes have a decompose voltage and ionic transference number of 1.48 V and 0.97, respectively. The multiwalled carbon nanotube is employed as the active material held by the fibrous network of BC. Cyclic voltammetry shows a rectangular shape CV plot with the absence of a redox peak. The supercapacitor is charged and discharged in a zig-zag-shaped Perspex plate for 1000 cycles with a decent performance.
| Item Type: | Article |
|---|---|
| Funders: | Centre for Research Management and Innovation, Universiti Pertahanan Nasional Malaysia (UPNM) |
| Uncontrolled Keywords: | EDLC; Supercapacitor; Bacterial cellulose; Biopolymer; Green energy; Electrolyte |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 27 Nov 2023 02:38 |
| Last Modified: | 27 Nov 2023 02:38 |
| URI: | http://eprints.um.edu.my/id/eprint/41559 |
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