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Nursyafni, Nursyafni
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Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Physics

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Harnessing multi-doping porous carbon from Musa paradisiaca L. peel waste for solid-state supercapacitors Purba, Cenora Evelynza; Nursyafni, Nursyafni; Apriwandi, Apriwandi; Kresna, Pharada; Julnaidi, Julnaidi; Nasir, Muhammad; Farma, Rakhmawati; Dewi, Rahmi; Martin, Awaludin; Hardanto, Lilik Tri; Taslim, Rika; Taer, Erman
Indonesian Physics Communication Vol 21, No 3 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.3.187-196

Abstract

The demand for low-cost carbons with multi-doping in supercapacitors has led to a significant focus on utilizing biomass waste to produce activated carbons. The research successfully utilized Musa paradisiaca L. (MPL) peel as a porous carbon for solid-state supercapacitor. The process involved collecting banana peel waste, drying the peels using sunlight, pre-carbonization using a furnace, pH neutralization, drying, crushing carbon particles, and ensuring uniform particle size. Different concentrations of the catalytic ZnCl2 solution (300, 500, and 700 mmol/g) were selected to optimize physical and electrochemical properties. The resulting chemically activated MPL carbon powder was evaluated using SEM-EDS, XRD, and BET. MPL activated carbon with a 500 mmol/g solution of ZnCl2 was found to have optimal physical properties with a carbon percentage of 81.65%, oxygen 17.39%, phosphorus 0.42%, and boron 0.52%. Electrochemical properties were evaluated using dual-electrode system was exhibited the highest specific capacitance of 67 F/g. These findings demonstrate the potential of MPL peel waste as a high quality electrode for supercapaicor next-generation.
Areca-nut waste-derived carbon porous for sustainable electrode materials: A brief study for green-supercapacitor Nursyafni, Nursyafni; Julnaidi, Julnaidi; Taer, Erman
Indonesian Physics Communication Vol 21, No 3 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.3.197-204

Abstract

Biomass-based porous carbon is an exceptional material with unique nano-morphological properties and a high surface area, making it an ideal candidate for improving the performance of supercapacitor electrodes. Herein, activated carbon derived novel areca-nut waste (ANW) as electrodes materials were successfully produced using a simple method. The process involved drying the ANW using pre-carbonization, chemical activation, and high-temperature pyrolysis. The zinc chloride was selected as chemical catalytic in 1 m/l solution. Subsequently, porous carbon was produced at different physical activation temperatures of 800°C, 850°C, and 900°C. The activated carbon was converted into coin-like design with an additional adhesive of PVA. The electrochemical properties were assessed using a two-electrode system in a 1 M H2SO4 electrolyte. The ANW-based supercapacitor demonstrated good electrochemical performance, with an optimal specific capacitance of 94.6 F/g at 850°C. Additionally, it exhibited an optimal energy density of 12.8 Wh/kg and a power density of 245.516 W/kg. These results suggest that porous carbon derived from ANW biomass holds promise as a sustainable working electrode for green-supercapacitor.
Novel colored biomass-waste from food industry sector derived hierarchical porous carbon nanofiber for robust symmetric supercapacitor Nursyaputri, Wan Mery; Fairuzy, Zeeva Khalilah; Khumairah, Zahra; Yanti, Novi; Nursyafni, Nursyafni; Apriwandi, Apriwandi; Taslim, Rika; Taer, Erman
Communications in Science and Technology Vol 9 No 2 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.2.2024.1534

Abstract

A major challenge in the use of supercapacitor energy storage applications is optimizing 3D-hierarchical porous and 2D nanofiber structures to improve the electrochemical performance of colored biomass-derived activated carbon (AC). Therefore, this study aims to synthesize AC from Dracaena Angustifolia (DA) leaves and dregs using a sustainable method through chemical activation and high-temperature pyrolysis. AC was designed to be adhesive-free to maintain the true mechanical properties of the precursor. Research results showed that the sample of DA-dregs-KOH shows optimal results with a specific surface area (317.66 m2 g-1). The electrochemical performance of hierarchical porous carbon treated with 1 M H2SO4 electrolyte in a 2-electrode system had a nanofiber structure with the highest specific capacitance (248 F g-1) at 1 A g-1 and energy density (12.96 Wh kg-1) with a coulomb efficiency 84.1%. Based on these results, DA dreg-KOH based porous AC with hierarchical porous morphology shows significant potential to be used as binder-free electrode materials that can produce high-performance supercapacitors as a new renewable and sustainable energy storage solution.
Co-Authors Apriwandi Awaludin Martin Erman Taer Fairuzy, Zeeva Khalilah Hardanto, Lilik Tri Julnaidi, Julnaidi Khumairah, Zahra Kresna, Pharada Muhammad Nasir Novi Yanti Nursyaputri, Wan Mery Purba, Cenora Evelynza Rahmi Dewi Rakhmawati Farma Rika Taslim