Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon
This study addresses the imperative need for high-performance and sustainable energy storage and conversion technologies by leveraging the unique properties of nitrogen-doped porous carbon (N@WnAC) derived from the waste walnut shells (WnS). In the realm of supercapacitors, the N@WnAC demonstrates r...
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Elsevier B.V.
2025
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| author | Husain A. Kandasamy M. Mahajan D.K. Selvaraj M. Ahmad R. Assiri M.A. Kumar N. Ramachandaramurthy V.K. |
| author2 | 57215031715 |
| author_facet | 57215031715 Husain A. Kandasamy M. Mahajan D.K. Selvaraj M. Ahmad R. Assiri M.A. Kumar N. Ramachandaramurthy V.K. |
| author_sort | Husain A. |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | This study addresses the imperative need for high-performance and sustainable energy storage and conversion technologies by leveraging the unique properties of nitrogen-doped porous carbon (N@WnAC) derived from the waste walnut shells (WnS). In the realm of supercapacitors, the N@WnAC demonstrates remarkable performance in a three-electrode system, showcasing a high specific capacitance value of 276.7 Fg?1 at 1 Ag?1, outstanding stability (96.6 %, 5000 charge?discharge cycles) and favourable rate capability (68.8 % at 10 Ag?1). Moreover, a quasi-solid-state symmetrical supercapacitor (N@WnAC//N@WnAC) is fabricated with PVA/H2SO4 gel electrolyte, underscores outstanding performance by delivering high capacitance (126.2 Fg?1 at 0.5 Ag?1), promising rate capability (71.8 % at 5 Ag?1), favourable long-term stability (93.3 %, 5000 charge?discharge cycles), and faster charge?discharge kinetics compared to conventional counterparts. At the same time, N@WnAC//N@WnAC delivers a high energy density (42.27 Whkg?1 at 0.5 Ag?1) that was retained up to 23.96 Whkg?1 even at 5 Ag?1. Simultaneously, the study explores the potential of N@WnAC as a counter-electrode (CE) in dye-sensitized solar cells (DSSC). The obtained results underscore that unique nitrogen doping enhances the electrocatalytic activity, leading to improved electron transfer kinetics and overall cell performance. Moreover, the N@WnAC CE-based DSSC delivers a promising overall solar-to-electrical conversion efficiency of 5.84 %. ? 2024 Elsevier B.V. |
| format | Article |
| id | my.uniten.dspace-36326 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | my.uniten.dspace-363262025-03-03T15:41:56Z Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon Husain A. Kandasamy M. Mahajan D.K. Selvaraj M. Ahmad R. Assiri M.A. Kumar N. Ramachandaramurthy V.K. 57215031715 57052581200 8712400500 7003615747 26540988600 57195309416 57201635180 6602912020 This study addresses the imperative need for high-performance and sustainable energy storage and conversion technologies by leveraging the unique properties of nitrogen-doped porous carbon (N@WnAC) derived from the waste walnut shells (WnS). In the realm of supercapacitors, the N@WnAC demonstrates remarkable performance in a three-electrode system, showcasing a high specific capacitance value of 276.7 Fg?1 at 1 Ag?1, outstanding stability (96.6 %, 5000 charge?discharge cycles) and favourable rate capability (68.8 % at 10 Ag?1). Moreover, a quasi-solid-state symmetrical supercapacitor (N@WnAC//N@WnAC) is fabricated with PVA/H2SO4 gel electrolyte, underscores outstanding performance by delivering high capacitance (126.2 Fg?1 at 0.5 Ag?1), promising rate capability (71.8 % at 5 Ag?1), favourable long-term stability (93.3 %, 5000 charge?discharge cycles), and faster charge?discharge kinetics compared to conventional counterparts. At the same time, N@WnAC//N@WnAC delivers a high energy density (42.27 Whkg?1 at 0.5 Ag?1) that was retained up to 23.96 Whkg?1 even at 5 Ag?1. Simultaneously, the study explores the potential of N@WnAC as a counter-electrode (CE) in dye-sensitized solar cells (DSSC). The obtained results underscore that unique nitrogen doping enhances the electrocatalytic activity, leading to improved electron transfer kinetics and overall cell performance. Moreover, the N@WnAC CE-based DSSC delivers a promising overall solar-to-electrical conversion efficiency of 5.84 %. ? 2024 Elsevier B.V. Final 2025-03-03T07:41:56Z 2025-03-03T07:41:56Z 2024 Article 10.1016/j.inoche.2024.112859 2-s2.0-85199910180 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85199910180&doi=10.1016%2fj.inoche.2024.112859&partnerID=40&md5=baf0b0c770a4a269fa00b1b236da72d7 https://irepository.uniten.edu.my/handle/123456789/36326 168 112859 Elsevier B.V. Scopus |
| spellingShingle | Husain A. Kandasamy M. Mahajan D.K. Selvaraj M. Ahmad R. Assiri M.A. Kumar N. Ramachandaramurthy V.K. Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon |
| title | Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon |
| title_full | Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon |
| title_fullStr | Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon |
| title_full_unstemmed | Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon |
| title_short | Attaining promising efficiency through a Quasi-Solid-State symmetrical supercapacitor and Dye-Sensitized solar cell counter electrode utilizing bifunctional Nitrogen-Doped microporous activated carbon |
| title_sort | attaining promising efficiency through a quasi-solid-state symmetrical supercapacitor and dye-sensitized solar cell counter electrode utilizing bifunctional nitrogen-doped microporous activated carbon |
| url_provider | http://dspace.uniten.edu.my/ |