Download file (1.69 MB)
Download as zip (1.65 MB)

Collection

Citation

Description:

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.

Rights:

• In Copyright
  

Keyword: Achyranthus bidentata, biomass, chemical activation, nanoporous carbon, supercapacitor

Date published: 2026-02-28

Publisher: Japan Oil Chemists' Society

Journal:

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

Funding:

Manuscript type: Author's version (Accepted manuscript)

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

First published URL: https://doi.org/10.5650/jos.ess25269

Related item:

Other identifier(s):

Contact agent:

Updated at: 2026-03-04 12:30:04 +0900

Published on MDR: 2026-03-04 09:52:49 +0900