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Modified Activated Carbon as an Effective Hydrogen Adsorbent

Author

Listed:
  • Paweł Baran

    (Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland)

  • Bronisław Buczek

    (Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland)

  • Katarzyna Zarębska

    (Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland)

Abstract

Hydrogen adsorption measurements were taken by the weighting method using the Sartorius low-pressure microbalance. Experiments were conducted at two temperatures: 77.5 and 300 K; the adsorbent used was active carbon obtained from wood and modified with potassium hydroxide. The porous structure of the carbon prior to and after modification was evaluated based on the nitrogen adsorption and desorption data. Thus, the densimetric characteristic of active carbon was modified; porous structures were developed in the range of micro-, meso- and macropores and the volume of hydrogen adsorbed at 77.5 K showed an almost four-fold increase. Modified active carbons are found to be suitable for applications in hydrogen storage systems.

Suggested Citation

  • Paweł Baran & Bronisław Buczek & Katarzyna Zarębska, 2022. "Modified Activated Carbon as an Effective Hydrogen Adsorbent," Energies, MDPI, vol. 15(17), pages 1-10, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6122-:d:895739
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    References listed on IDEAS

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    1. Jinsheng Xiao & Ang Mei & Wei Tao & Shuo Ma & Pierre Bénard & Richard Chahine, 2021. "Hydrogen Purification Performance Optimization of Vacuum Pressure Swing Adsorption on Different Activated Carbons," Energies, MDPI, vol. 14(9), pages 1-14, April.
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