The effect of orthophosphoric acid on energy-intensive parameters of porous carbon electrode materials

  • N.Ya. Ivanichok Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • P.I. Kolkovskyi Ivano-Frankivsk National Medical University, Ivano-Frankivsk, Ukraine
  • A.M. Soltys Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • V.M. Boychuk Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • V.I. Mandzyuk Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • L.S. Yablon Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • B.I. Rachiy Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
Keywords: porous carbon material, activating agent, specific surface area, pore size distribution, specific capacity, electrochemical capacitor


The effect of orthophosphoric acid concentration as an activating agent on the porous structure of carbon materials derived from apricot pits and energy-intensive parameters of electrochemical capacitors formed on their basis is studied. It is found that changing the ratio of the mass of the activating agent to the mass of the raw material in acid-activated porous carbon materials (PCMs), one can control the pore size distribution in the range of 0.5-20 nm and specific surface area in the range of 775-1830 m2/g. The use of cyclic voltammetry, impedance spectroscopy and chronopotentiometry made it possible to set the capacitive nature of charge accumulation processes in acid-activated PCMs, as well as to determine the contribution of a certain size of pores to the specific capacitance of PCM/electrolyte system.


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How to Cite
IvanichokN., KolkovskyiP., SoltysA., BoychukV., MandzyukV., YablonL., & RachiyB. (2023). The effect of orthophosphoric acid on energy-intensive parameters of porous carbon electrode materials. Physics and Chemistry of Solid State, 24(1), 34-45.
Scientific articles (Physics)

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