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- Title
Novel Solanum torvum Fruit Biomass-Derived Hierarchical Porous Carbon Nanosphere as Excellent Electrode Material for Enhanced Symmetric Supercapacitor Performance.
- Authors
Taer, Erman; Syamsunar, Nursyafni; Apriwandi, Apriwandi; Taslim, Rika
- Abstract
Biomass-based hierarchical porous carbon nanospheres offer an outstanding performance of electrode materials in electrochemical energy storage device applications. However, integrating all these advantages into one fabric is still a challenge. Therefore, this study aims to develop novel biomass of Solanum torvum fruit (STF) as a hierarchical porous carbon nanosphere source for high-quality electrode material for supercapacitor applications. The STF-based carbon nanospheres were synthesized with a green, sustainable strategy through ZnCl2 impregnation, carbonization, and physical activation. Through the 0.5 M ZnCl2, it was discovered that the carbon nanosphere maintains a dense spherical structure with enriched 3D "cow tripe-like" hierarchical pores. The optimized carbon nanosphere yielded a high specific surface area of 1176.29 m2g−1 with a nearly balanced combination of the micro-mesopores. The combination of the 3D hierarchical pore structure and densely packed nanospheres gave high electrochemical properties of the symmetric supercapacitor with a delightful specific capacitance of 154 Fg−1 at 1 Ag−1 in the H2SO4 electrolyte and high cyclic performance with coulombic efficiency ~ 84.5%. The energy density was boosted to 30.4 Whkg−1 in power density of 1.27 kWkg−1 5 Ag−1. Therefore, porous carbon nanospheres from novel STF biomass are ideal candidates as electrode materials for high-performance electrochemical energy storage devices.
- Subjects
SUPERCAPACITOR performance; SUPERCAPACITOR electrodes; SUPERCAPACITORS; SOLANUM; ELECTRODE performance; ENERGY density; ENERGY storage
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2023, Vol 75, Issue 11, p4494
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-023-05801-x