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Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration

The transition towards renewable energy sources necessitates efficient energy storage systems to meet growing demands. Electrochemical capacitors, particularly electric double-layer capacitors (EDLCs), show promising performance due to their superior properties. However, the presence of resistance l...

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Main Authors: Nur Alya Syakirah, Abdul Jalil, Aboelazm, Eslam Atef Abdelaziz, Khe, Chengseong, Ali, Gomaa Abdelgawad Mohammed, Chong, Kwok Feng, Lai, Chin Wei, You, Kokyeow
Format: Article
Language:English
Published: Public Library of Science 2024
Subjects:
HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
Online Access:http://umpir.ump.edu.my/id/eprint/41325/1/Enhancing%20capacitive%20performance%20of%20magnetite-reduced%20graphene%20oxide%20nanocomposites.pdf
http://umpir.ump.edu.my/id/eprint/41325/
https://doi.org/10.1371/journal.pone.0292737
https://doi.org/10.1371/journal.pone.0292737
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spelling my.ump.umpir.413252024-07-01T01:08:03Z http://umpir.ump.edu.my/id/eprint/41325/ Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration Nur Alya Syakirah, Abdul Jalil Aboelazm, Eslam Atef Abdelaziz Khe, Chengseong Ali, Gomaa Abdelgawad Mohammed Chong, Kwok Feng Lai, Chin Wei You, Kokyeow HD Industries. Land use. Labor Q Science (General) T Technology (General) The transition towards renewable energy sources necessitates efficient energy storage systems to meet growing demands. Electrochemical capacitors, particularly electric double-layer capacitors (EDLCs), show promising performance due to their superior properties. However, the presence of resistance limits their performance. This study explores using an external magnetic field to mitigate ion transfer resistance and enhance capacitance in magnetite-reduced graphene oxide (M-rGO) nanocomposites. M-rGO nanocomposites with varying weight ratios of magnetite were synthesized and comprehensively characterized. Characterization highlighted the difference in certain parameters such as C/O ratio, the Id/Ig ratio, surface area and particle size that contribute towards alteration of M-rGO’s capacitive behaviour. Electrochemical studies demonstrated that applying a magnetic field increased specific capacitance by approximately 20% and reduced resistance by 33%. Notably, a maximum specific capacitance of 16.36 F/g (at a scan rate of 0.1 V/s) and 27.24 F/g (at a current density of 0.25 A/g) was achieved. These improvements were attributed to enhanced ion transportation and migration at the electrode/electrolyte interface, lowering overall resistance. However, it was also observed that the aforementioned parameters can also limit the M-rGO’s performance, resulting in saturated capacitive state despite a reduced resistance. The integration of magnetic fields enhances energy storage in nanocomposite systems, necessitating further investigation into underlying mechanisms and practical applications. Public Library of Science 2024-02 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/41325/1/Enhancing%20capacitive%20performance%20of%20magnetite-reduced%20graphene%20oxide%20nanocomposites.pdf Nur Alya Syakirah, Abdul Jalil and Aboelazm, Eslam Atef Abdelaziz and Khe, Chengseong and Ali, Gomaa Abdelgawad Mohammed and Chong, Kwok Feng and Lai, Chin Wei and You, Kokyeow (2024) Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration. PLoS ONE, 19 (e0292737). pp. 1-19. ISSN 1932-6203. (Published) https://doi.org/10.1371/journal.pone.0292737 https://doi.org/10.1371/journal.pone.0292737
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
spellingShingle HD Industries. Land use. Labor
Q Science (General)
T Technology (General)
Nur Alya Syakirah, Abdul Jalil
Aboelazm, Eslam Atef Abdelaziz
Khe, Chengseong
Ali, Gomaa Abdelgawad Mohammed
Chong, Kwok Feng
Lai, Chin Wei
You, Kokyeow
Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
description The transition towards renewable energy sources necessitates efficient energy storage systems to meet growing demands. Electrochemical capacitors, particularly electric double-layer capacitors (EDLCs), show promising performance due to their superior properties. However, the presence of resistance limits their performance. This study explores using an external magnetic field to mitigate ion transfer resistance and enhance capacitance in magnetite-reduced graphene oxide (M-rGO) nanocomposites. M-rGO nanocomposites with varying weight ratios of magnetite were synthesized and comprehensively characterized. Characterization highlighted the difference in certain parameters such as C/O ratio, the Id/Ig ratio, surface area and particle size that contribute towards alteration of M-rGO’s capacitive behaviour. Electrochemical studies demonstrated that applying a magnetic field increased specific capacitance by approximately 20% and reduced resistance by 33%. Notably, a maximum specific capacitance of 16.36 F/g (at a scan rate of 0.1 V/s) and 27.24 F/g (at a current density of 0.25 A/g) was achieved. These improvements were attributed to enhanced ion transportation and migration at the electrode/electrolyte interface, lowering overall resistance. However, it was also observed that the aforementioned parameters can also limit the M-rGO’s performance, resulting in saturated capacitive state despite a reduced resistance. The integration of magnetic fields enhances energy storage in nanocomposite systems, necessitating further investigation into underlying mechanisms and practical applications.
format Article
author Nur Alya Syakirah, Abdul Jalil
Aboelazm, Eslam Atef Abdelaziz
Khe, Chengseong
Ali, Gomaa Abdelgawad Mohammed
Chong, Kwok Feng
Lai, Chin Wei
You, Kokyeow
author_facet Nur Alya Syakirah, Abdul Jalil
Aboelazm, Eslam Atef Abdelaziz
Khe, Chengseong
Ali, Gomaa Abdelgawad Mohammed
Chong, Kwok Feng
Lai, Chin Wei
You, Kokyeow
author_sort Nur Alya Syakirah, Abdul Jalil
title Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
title_short Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
title_full Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
title_fullStr Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
title_full_unstemmed Enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
title_sort enhancing capacitive performance of magnetite-reduced graphene oxide nanocomposites through magnetic fieldassisted ion migration
publisher Public Library of Science
publishDate 2024
url http://umpir.ump.edu.my/id/eprint/41325/1/Enhancing%20capacitive%20performance%20of%20magnetite-reduced%20graphene%20oxide%20nanocomposites.pdf
http://umpir.ump.edu.my/id/eprint/41325/
https://doi.org/10.1371/journal.pone.0292737
https://doi.org/10.1371/journal.pone.0292737
_version_ 1822924424079212544
score 13.23648

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