Electrochemical properties of nanoporous carbon materials obtained from raw materials of plant origin (hemp shives)

  • N.Ya. Ivanichok Vasyl Stefanyk Precarpathian National University
  • I.M. Budzuliak Vasyl Stefanyk Precarpathian National University
  • M.I. Moiseienko Ivano-Frankivsk National Medical University
  • R.P. Lisovskiy Ivano-Frankivsk National Medical University
  • B.I. Rachii Vasyl Stefanyk Precarpathian National University
  • A.M. Gamarnyk Ivano-Frankivsk National Medical University
  • L.V. Turovska Ivano-Frankivsk National Medical University
  • S.A. Lisovska Ivano-Frankivsk National Medical University
Keywords: nanoporous carbon material, thermochemical activation, electrical double layer, electrochemical capacitor, specific capacitance

Abstract

The paper reveals the results of electrochemical studies of activated nanoporous carbon material (NPC) as an electrode material for electrochemical capacitors (EC), the charge of which is accumulated in an electrical double layer (EDL). NPC material has been obtained from raw material of plant origin (hemp shives) by thermochemical activation using phosphoric acid. It has been established that there is an optimal ratio between the amount of acid and precursor based on plant biomass that is equal to 0.75:1. The specific surface area of ​​the obtained NPCwas ~ 2000 m2/g, and the maximum specific capacitance of EC models based on them was ~ 113 F/g. At the same time, the contribution of the EDL capacitance to the total capacitance is 60-80 %.

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Published
2020-03-28
How to Cite
Ivanichok, N., Budzuliak, I., Moiseienko, M., Lisovskiy, R., Rachii, B., Gamarnyk, A., Turovska, L., & Lisovska, S. (2020). Electrochemical properties of nanoporous carbon materials obtained from raw materials of plant origin (hemp shives). Physics and Chemistry of Solid State, 21(1), 35-42. https://doi.org/10.15330/pcss.21.1.35-42
Section
Scientific articles