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Here, we report on the fabrication of nanoporous activated carbon materials from a novel biomass precursor Achyranthus bidentata (Datiwan), using a low-energy method (carbonized at 500 °C). The effects of chemical activators (phosphoric acid (H3PO4), potassium hydroxide (KOH), and zinc chloride (ZnCl2) on surface textural properties and energy storage capacity were systematically studied. The H3PO4 and ZnCl2 activated samples (DAC-H500, DAC-Z500) exhibited the specific surface area of 724 and 758 m2 g-1, respectively, and retained abundant surface oxygen functionalities, thereby leveraging decent specific capacitance of 201 F g-1 and 140 F g-1 at 1 A g-1 with 51% and 61.3% retention of their initial capacitance values at 10 A g-1.

権利情報:

• In Copyright
  

キーワード: Achyranthus bidentata, biomass, chemical activation, nanoporous carbon, supercapacitor

刊行年月日: 2026-02-28

出版者: Japan Oil Chemists' Society

掲載誌:

• Journal of Oleo Science (ISSN: 13458957) vol. 75 issue. 3 jos.ess25269

研究助成金:

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6201

公開URL: https://doi.org/10.5650/jos.ess25269

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更新時刻: 2026-03-04 12:30:04 +0900

MDRでの公開時刻: 2026-03-04 09:52:49 +0900