Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application
The compelling necessity for sustainable energy storage solutions has propelled the advancement of high-performance energy storage strategies. Conventional carbon materials derived from fossils sources cause the limitations of being high rate, processing challenges, and potential harm. Conversely, a...
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| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/10/e3sconf_ri2c2025_01004.pdf |
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| author | Mishra Pawan Kumar Aryal Sabin Bhakta Oli Hari Shrestha Timila Sapkota Thakur Shrestha Ram Lal Swagat Prasad Bhattarai Deval |
| author_facet | Mishra Pawan Kumar Aryal Sabin Bhakta Oli Hari Shrestha Timila Sapkota Thakur Shrestha Ram Lal Swagat Prasad Bhattarai Deval |
| author_sort | Mishra Pawan Kumar |
| collection | DOAJ |
| description | The compelling necessity for sustainable energy storage solutions has propelled the advancement of high-performance energy storage strategies. Conventional carbon materials derived from fossils sources cause the limitations of being high rate, processing challenges, and potential harm. Conversely, activated carbon sourced from biomass has emerged as a promising substitute due to its abundant presence in nature, high carbon content, and ease of processing with minimal toxicity. This study outlines the production of activated carbon from the matured bark of Acacia catechu through a sequence of processes, including pre-carbonization, carbonization, and activation at varying temperatures utilizing potassium hydroxide (KOH) as an activating agent. The prepared specimen underwent analysis using diverse methods such as iodine and methylene blue number techniques, XRD, FTIR-test, Raman test, TEM, and its potential storage capacity was appraised via CV, GCD, EIS, and CV stability tests paying a three-electrode arrangement. The activated carbon synthesized at 800 °C (KBAC-8) demonstrated a specific capacitance of 264.51 F/g at 1 A/g, with outstanding retention of 94.64% and superior coulombic efficiency equated to KBAC-6 and KBAC-4. Overall results suggest the relevance of KBAC-8 for supercapacitor applications due to its subordinate resistance. |
| format | Article |
| id | doaj-art-2505719495b1441299d9872bbf2933b2 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-2505719495b1441299d9872bbf2933b22025-02-05T10:50:19ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016100100410.1051/e3sconf/202561001004e3sconf_ri2c2025_01004Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor applicationMishra Pawan Kumar0Aryal Sabin1Bhakta Oli Hari2Shrestha Timila3Sapkota Thakur4Shrestha Ram Lal Swagat5Prasad Bhattarai Deval6Department of Chemistry, Tri Chandra Multiple Campus, Tribhuvan UniversityDepartment of Chemistry, Amrit Campus, Tribhuvan UniversityDepartment of Chemistry, Amrit Campus, Tribhuvan UniversityDepartment of Chemistry, Amrit Campus, Tribhuvan UniversityDepartment of Applied Science and Technology, North Carolina S&T state UniversityDepartment of Chemistry, Amrit Campus, Tribhuvan UniversityDepartment of Chemistry, Amrit Campus, Tribhuvan UniversityThe compelling necessity for sustainable energy storage solutions has propelled the advancement of high-performance energy storage strategies. Conventional carbon materials derived from fossils sources cause the limitations of being high rate, processing challenges, and potential harm. Conversely, activated carbon sourced from biomass has emerged as a promising substitute due to its abundant presence in nature, high carbon content, and ease of processing with minimal toxicity. This study outlines the production of activated carbon from the matured bark of Acacia catechu through a sequence of processes, including pre-carbonization, carbonization, and activation at varying temperatures utilizing potassium hydroxide (KOH) as an activating agent. The prepared specimen underwent analysis using diverse methods such as iodine and methylene blue number techniques, XRD, FTIR-test, Raman test, TEM, and its potential storage capacity was appraised via CV, GCD, EIS, and CV stability tests paying a three-electrode arrangement. The activated carbon synthesized at 800 °C (KBAC-8) demonstrated a specific capacitance of 264.51 F/g at 1 A/g, with outstanding retention of 94.64% and superior coulombic efficiency equated to KBAC-6 and KBAC-4. Overall results suggest the relevance of KBAC-8 for supercapacitor applications due to its subordinate resistance.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/10/e3sconf_ri2c2025_01004.pdf |
| spellingShingle | Mishra Pawan Kumar Aryal Sabin Bhakta Oli Hari Shrestha Timila Sapkota Thakur Shrestha Ram Lal Swagat Prasad Bhattarai Deval Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application E3S Web of Conferences |
| title | Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application |
| title_full | Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application |
| title_fullStr | Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application |
| title_full_unstemmed | Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application |
| title_short | Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor application |
| title_sort | enhanced electrochemical performance of activated carbon derived from acacia catechu bark by koh activation for supercapacitor application |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/10/e3sconf_ri2c2025_01004.pdf |
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