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Biomass carbons are promising candidates for energy storage applications due to their large surface areas, hierarchical pore structures, well-defined pore dimensions and tunable porosity. Here, we report the production of porous carbon materials from Terminalia bellirica (Barro) seeds involving zinc chloride activation at different impregnation ratios (1:1 – 1:3) and carbonization temperatures (700 – 900 ℃), and their supercapacitive performances in 1 M sulfuric acid in three-electrode and two-electrode systems.

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• In Copyright
  

  This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, copyright © 2025 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsaem.5c00606.

Keyword: Terminalia bellirica seed, ZnCl2 activation, hierarchical porous carbon, EDLC, supercapacitor

Date published: 2025-06-23

Publisher: American Chemical Society (ACS)

Journal:

• ACS Applied Energy Materials (ISSN: 25740962) vol. 8 issue. 12 p. 8100-8109

Funding:

• Japan Society for the Promotion of Science JP20H00392
• Japan Society for the Promotion of Science JP23H05459
• National Institute for Materials Science

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5547

First published URL: https://doi.org/10.1021/acsaem.5c00606

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Updated at: 2025-06-24 17:00:22 +0900

Published on MDR: 2026-06-11 08:30:58 +0900