Author(s):
1. Vladimir Lukić, BIN Commerce d.o.o., Belgrade, SERBIA, Serbia
2. Ljiljana Tanasić, Academy of applied studies Sabac Department of Agricultural - Business Studies and Tourism, Šabac, S, Serbia

Abstract:
This paper describes kinetics of hydrogen adsorption process at 60 minutes and activated carbon powder into wich palladium be chemically deposited in non-isothermal and isothermal conditions. The same powder is doped with Ni and Co is the adsorption process, and tested in the same conditions. Isothermal measurements were carried out depending on the hydrogen pressure in the chamber without the presence of the adsorbent in the presence of the adsorbent at temperatures of t1=800C, t2=1000C, t3=1200C i t4=1400C. It is shown that in the first time interval at the four temperatures exists a linear dependence of ln(Δp) of the time τ. This finding confirms that in the first time interval the adsorption kinetics of hydrogen. The second time interval exists a linear dependence of Δp=f(s1/2). This confirms that in the second time interval, the process of adsorption of the hydrogen diffusion. For both processes are determined by the activation energy aktivacije Ekin and Edif.

Key words:
carbon,hydrogen,activation energy,adsorption rates,hydrogenation isotherm

Thematic field:
SYMPOSIUM A - Science of matter, condensed matter and physics of solid states

Date of abstract submission:
14.08.2025.

Conference:
Contemporary Materials 2025 - Savremeni Materijali

Abstract