Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors
This study presents an innovative method for synthesizing activated carbon with an exceptionally high surface area (3359 m2 g?1) using kenaf fiber-based biochar through chemical activation. The achieved specific surface area surpasses activated carbon derived from other reported fiber-based precurso...
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Elsevier Ltd
2025
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| author | Subramaniam T. Ansari M.N.M. Krishnan S.G. Khalid M. |
| author2 | 57555444100 |
| author_facet | 57555444100 Subramaniam T. Ansari M.N.M. Krishnan S.G. Khalid M. |
| author_sort | Subramaniam T. |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | This study presents an innovative method for synthesizing activated carbon with an exceptionally high surface area (3359 m2 g?1) using kenaf fiber-based biochar through chemical activation. The achieved specific surface area surpasses activated carbon derived from other reported fiber-based precursors. The resulting activated carbon was investigated as electrodes for supercapacitors, revealing a remarkable maximum capacitance of 312 F g?1 at a current density of 0.5 A g?1. An aqueous symmetric supercapacitor employing these high-surface-area electrodes exhibited an outstanding energy density of 18.9 Wh kg?1 at a power density of 250 W kg?1. Notably, the supercapacitor retained exceptional capacitance, maintaining 93% of its initial capacitance even after 5000 charge-discharge cycles. ? 2024 Elsevier Ltd |
| format | Article |
| id | my.uniten.dspace-36613 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | my.uniten.dspace-366132025-03-03T15:43:25Z Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors Subramaniam T. Ansari M.N.M. Krishnan S.G. Khalid M. 57555444100 55489853600 56211314600 36945624700 Charcoal Electric Capacitance Electrodes Hibiscus Activation energy Capacitance Electric discharges Electrodes Hemp Kenaf fibers Supercapacitor activated carbon charcoal charcoal Biochar Carbon A Energy density High surface area High surface area electrodes Innovative method Performance Sustainable solution Symmetric supercapacitor Symmetrics activated carbon biochar chemical analysis electrode energy efficiency performance assessment sustainability Article controlled study current density density kenaf surface area electric capacitance Hibiscus Activated carbon This study presents an innovative method for synthesizing activated carbon with an exceptionally high surface area (3359 m2 g?1) using kenaf fiber-based biochar through chemical activation. The achieved specific surface area surpasses activated carbon derived from other reported fiber-based precursors. The resulting activated carbon was investigated as electrodes for supercapacitors, revealing a remarkable maximum capacitance of 312 F g?1 at a current density of 0.5 A g?1. An aqueous symmetric supercapacitor employing these high-surface-area electrodes exhibited an outstanding energy density of 18.9 Wh kg?1 at a power density of 250 W kg?1. Notably, the supercapacitor retained exceptional capacitance, maintaining 93% of its initial capacitance even after 5000 charge-discharge cycles. ? 2024 Elsevier Ltd Final 2025-03-03T07:43:24Z 2025-03-03T07:43:24Z 2024 Article 10.1016/j.chemosphere.2024.141593 2-s2.0-85187806566 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85187806566&doi=10.1016%2fj.chemosphere.2024.141593&partnerID=40&md5=a3ddb1d9fb5bd0a8176a4e02140633c7 https://irepository.uniten.edu.my/handle/123456789/36613 354 141593 Elsevier Ltd Scopus |
| spellingShingle | Charcoal Electric Capacitance Electrodes Hibiscus Activation energy Capacitance Electric discharges Electrodes Hemp Kenaf fibers Supercapacitor activated carbon charcoal charcoal Biochar Carbon A Energy density High surface area High surface area electrodes Innovative method Performance Sustainable solution Symmetric supercapacitor Symmetrics activated carbon biochar chemical analysis electrode energy efficiency performance assessment sustainability Article controlled study current density density kenaf surface area electric capacitance Hibiscus Activated carbon Subramaniam T. Ansari M.N.M. Krishnan S.G. Khalid M. Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors |
| title | Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors |
| title_full | Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors |
| title_fullStr | Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors |
| title_full_unstemmed | Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors |
| title_short | Kenaf-based activated carbon: A sustainable solution for high-performance aqueous symmetric supercapacitors |
| title_sort | kenaf-based activated carbon: a sustainable solution for high-performance aqueous symmetric supercapacitors |
| topic | Charcoal Electric Capacitance Electrodes Hibiscus Activation energy Capacitance Electric discharges Electrodes Hemp Kenaf fibers Supercapacitor activated carbon charcoal charcoal Biochar Carbon A Energy density High surface area High surface area electrodes Innovative method Performance Sustainable solution Symmetric supercapacitor Symmetrics activated carbon biochar chemical analysis electrode energy efficiency performance assessment sustainability Article controlled study current density density kenaf surface area electric capacitance Hibiscus Activated carbon |
| url_provider | http://dspace.uniten.edu.my/ |