SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology
Bacterial Cellulose (BC) derived from local market or symbiotic culture of bacteria and yeast (SCOBY) was employed as the polymer matrix for hydroxyl multi-walled carbon nanotube (MWCNT-OH)-based electrochemical double-layer capacitor (EDLC). Chitosan (CS)-sodium iodide (NaI)-glycerol (Gly) electrol...
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my.um.eprints.462312024-07-25T07:21:35Z http://eprints.um.edu.my/46231/ SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology Hamsan, Muhamad Hafiz Halim, Norhana Abdul Demon, Siti Zulaikha Ngah Sa'aya, Nurul Syahirah Nasuha Kadir, Mohd Fakhrul Zamani Abidin, Zul Hazrin Zainal Poad, Nursaadah Ahmad Kasim, Nurul Farhana Abu Razali, Nur Amira Mamat Aziz, Shujahadeen B. Ahmad, Khairol Amali Miskon, Azizi Nor, Norazman Mohamad QC Physics QD Chemistry Bacterial Cellulose (BC) derived from local market or symbiotic culture of bacteria and yeast (SCOBY) was employed as the polymer matrix for hydroxyl multi-walled carbon nanotube (MWCNT-OH)-based electrochemical double-layer capacitor (EDLC). Chitosan (CS)-sodium iodide (NaI)-glycerol (Gly) electrolyte systems were used as the polymer electrolyte. CS-NaI-Gly electrolyte possesses conductivity, potential stability and ionic transference number of (1.20 +/- 0.26) x 10-3 S cm-2, 2.5 V and 0.99, respectively. For the electrodes, MWCNT-OH was observed to be well dispersed in the matrix of BC which was obtained via FESEM analysis. The inclusion of MWCNT-OH reduced the crystallinity of the BC polymeric structure. From EIS measurement, it was verified that the presence of MWCNT-OH decreased the electron transfer resistance of BC-based electrodes. Cyclic voltammetry (CV) showed that the shape of the CV plots changed to a rectangular-like shape plot as more MWCNT were added, thus verifying the capacitive behavior. Various amount of MWCNT-OH was used in the fabrication of the EDLC where it was discovered that more MWCNT-OH leads to a better EDLC performance. The EDLC was tested for 5000 complete charge-discharge cycles. The optimum performance of this low voltage EDLC was obtained with 0.1 g MWCNT where the average specific capacitance was 8.80 F g-1. The maximum power and energy density of the fabricated EDLC were 300 W kg-1 and 1.6 W h kg-1, respectively. CELL PRESS 2022-10 Article PeerReviewed Hamsan, Muhamad Hafiz and Halim, Norhana Abdul and Demon, Siti Zulaikha Ngah and Sa'aya, Nurul Syahirah Nasuha and Kadir, Mohd Fakhrul Zamani and Abidin, Zul Hazrin Zainal and Poad, Nursaadah Ahmad and Kasim, Nurul Farhana Abu and Razali, Nur Amira Mamat and Aziz, Shujahadeen B. and Ahmad, Khairol Amali and Miskon, Azizi and Nor, Norazman Mohamad (2022) SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology. HELIYON, 8 (10). ISSN 2405-8440, DOI https://doi.org/10.1016/j.heliyon.2022.e11048 <https://doi.org/10.1016/j.heliyon.2022.e11048>. https://doi.org/10.1016/j.heliyon.2022.e11048 10.1016/j.heliyon.2022.e11048 |
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QC Physics QD Chemistry Hamsan, Muhamad Hafiz Halim, Norhana Abdul Demon, Siti Zulaikha Ngah Sa'aya, Nurul Syahirah Nasuha Kadir, Mohd Fakhrul Zamani Abidin, Zul Hazrin Zainal Poad, Nursaadah Ahmad Kasim, Nurul Farhana Abu Razali, Nur Amira Mamat Aziz, Shujahadeen B. Ahmad, Khairol Amali Miskon, Azizi Nor, Norazman Mohamad SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
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Bacterial Cellulose (BC) derived from local market or symbiotic culture of bacteria and yeast (SCOBY) was employed as the polymer matrix for hydroxyl multi-walled carbon nanotube (MWCNT-OH)-based electrochemical double-layer capacitor (EDLC). Chitosan (CS)-sodium iodide (NaI)-glycerol (Gly) electrolyte systems were used as the polymer electrolyte. CS-NaI-Gly electrolyte possesses conductivity, potential stability and ionic transference number of (1.20 +/- 0.26) x 10-3 S cm-2, 2.5 V and 0.99, respectively. For the electrodes, MWCNT-OH was observed to be well dispersed in the matrix of BC which was obtained via FESEM analysis. The inclusion of MWCNT-OH reduced the crystallinity of the BC polymeric structure. From EIS measurement, it was verified that the presence of MWCNT-OH decreased the electron transfer resistance of BC-based electrodes. Cyclic voltammetry (CV) showed that the shape of the CV plots changed to a rectangular-like shape plot as more MWCNT were added, thus verifying the capacitive behavior. Various amount of MWCNT-OH was used in the fabrication of the EDLC where it was discovered that more MWCNT-OH leads to a better EDLC performance. The EDLC was tested for 5000 complete charge-discharge cycles. The optimum performance of this low voltage EDLC was obtained with 0.1 g MWCNT where the average specific capacitance was 8.80 F g-1. The maximum power and energy density of the fabricated EDLC were 300 W kg-1 and 1.6 W h kg-1, respectively. |
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Hamsan, Muhamad Hafiz Halim, Norhana Abdul Demon, Siti Zulaikha Ngah Sa'aya, Nurul Syahirah Nasuha Kadir, Mohd Fakhrul Zamani Abidin, Zul Hazrin Zainal Poad, Nursaadah Ahmad Kasim, Nurul Farhana Abu Razali, Nur Amira Mamat Aziz, Shujahadeen B. Ahmad, Khairol Amali Miskon, Azizi Nor, Norazman Mohamad |
author_facet |
Hamsan, Muhamad Hafiz Halim, Norhana Abdul Demon, Siti Zulaikha Ngah Sa'aya, Nurul Syahirah Nasuha Kadir, Mohd Fakhrul Zamani Abidin, Zul Hazrin Zainal Poad, Nursaadah Ahmad Kasim, Nurul Farhana Abu Razali, Nur Amira Mamat Aziz, Shujahadeen B. Ahmad, Khairol Amali Miskon, Azizi Nor, Norazman Mohamad |
author_sort |
Hamsan, Muhamad Hafiz |
title |
SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
title_short |
SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
title_full |
SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
title_fullStr |
SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
title_full_unstemmed |
SCOBY-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
title_sort |
scoby-based bacterial cellulose as free standing electrodes for safer, greener and cleaner energy storage technology |
publisher |
CELL PRESS |
publishDate |
2022 |
url |
http://eprints.um.edu.my/46231/ https://doi.org/10.1016/j.heliyon.2022.e11048 |
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1806442656410107904 |
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13.18916 |