Valorisation of almond residues via deep eutectic solvent-assisted activation for aqueous zinc-ion hybrid supercapacitors

Authors

  • Densa Ann Shaj Thermochemical Process Group (GPT), Aragón Institute for Engineering Research (I3A) , University of Zaragoza https://orcid.org/0009-0000-7059-5351
  • Darío Alvira Thermochemical Process Group (GPT), Aragón Institute for Engineering Research (I3A) , University of Zargoza
  • Daniel Antorán Thermochemical process group, Aragón Institute of Engineering Research , University of Zaragoza
  • Joan J. Manyà Thermochemical Process Group, Aragón Institute of Engineering Research , University of Zaragoza

DOI:

https://doi.org/10.26754/jji-i3a.202613258

Abstract

Almond residues were converted into activated carbons via impregnation in K2CO3–ethylene glycol deep eutectic solvent for zinc-ion hybrid supercapacitors. This study demonstrates effective biomass valorisation, highlighting precursor hydrothermal pretreatment and DES-assisted activation, with excellent rate capability of 181 and 75 mAh g−1  at 0.1 and 10 A g−1 respectively.

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Published

2026-07-17

Issue

Vol. 14 (2026): Actas de la XV Jornada de Jóvenes Investigadores e Investigadoras del I3A - 9 de junio de 2026

Section

Artículos (Procesos y Reciclado)

License

Copyright (c) 2026 Densa Ann Shaj, Darío Alvira, Daniel Antorán, Joan J. Manyà

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

How to Cite

Shaj, D. A., Alvira, D., Antorán, D., & Manyà, J. J. (2026). Valorisation of almond residues via deep eutectic solvent-assisted activation for aqueous zinc-ion hybrid supercapacitors. Jornada De Jóvenes Investigadores Del I3A, 14. https://doi.org/10.26754/jji-i3a.202613258