Novel O, P, S self-doped with 3D hierarchy porous carbon from aromatic agricultural waste via H3PO4 activation for supercapacitor electrodes

Rapid progress in energy storage technology, specifically concerning supercapacitors as an extension of conventional capacitors and batteries, is increasingly becoming a focal point of attention. Supercapacitor electrode components can be designed using diverse range of advantageous conductive mater...

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Bibliographic Details
Published in:Diamond and related materials 2023-12, Vol.140, p.110415, Article 110415
Main Authors: Taer, Erman, Yanti, Novi, Apriwandi, Apriwandi, Ismardi, Abrar, Taslim, Rika
Format: Article
Language:English
Subjects:
Aromatic_biomass
Energy_storage
Hierarchical_nanotubes
Porous_carbon
Supercapacitor_electrode
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Summary:Rapid progress in energy storage technology, specifically concerning supercapacitors as an extension of conventional capacitors and batteries, is increasingly becoming a focal point of attention. Supercapacitor electrode components can be designed using diverse range of advantageous conductive materials. Creation of electrodes involved the conversion aromatic biomass (AB) into porous activated carbon (AC), which possessed pore structure and composition that enhanced its practical utility. AB raw waste is prepared by drying material and precarbonizing. AB carbons were chemically activated 0.5 M (H3PO4, KOH, NaOH) by pyrolysis (N2-CO2) from 30 to 850 °C. Based on physical characteristics, AB-H3PO4 is confirmed as the best condition confirmed advantageous pore structure 3D hierarchical which can be accessed by electrolyte ions during electrochemical processes. However, AB-H3PO4 showed remarkable electrochemical capabilities, exhibiting Csp = 293.73 F g−1, Esp = 39.21 Wh kg−1, and Psp = 134.86 W kg−1 at current density 1 A g−1. These results were attributed to the specific capacitance of the oxidation-reduction reaction, triple self-doping heteroatoms O, P, S with carbon purity 88.69 %. Suitability chemical activators with AC based on AB waste influenced the creation of pore structures. These structures optimized accessibility for electrolyte ions, while availability of heteroatoms contributed to high specific capacitance. The factors collectively impacted application of supercapacitor electrode components. [Display omitted]
ISSN:0925-9635
1879-0062
DOI:10.1016/j.diamond.2023.110415