A. A. Fomkin and V. A. Sinitsyn
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences,
Leninskii pr. 31, Moscow, 119991 Russia
Received March 28, 2007
Abstract—Hydrogen adsorption is calculated for model microporous adsorbents with slitlike micropore
widths of 0.538, 0.878, and 1.218 nm obtained by the consecutive exclusion of one, two, and three layers of
hexagonal carbon from graphite structure taken as a model cell. Calculations are performed using the basic con-
cepts of the theory of volume filling of micropores, Dubinin–Radushkevich equation, and linear adsorption
isosteres. For structures with one- and two-layer carbon walls, the calculation is carried out at temperatures of
20, 33, 77, 200, 300, and 400 K and pressures up to 20 MPa. For AC3:5 structure, the maximum hydrogen
adsorption amounts to 7.9 wt % at 20 MPa and 300 K. The parameters of adsorbent porous structure are estab-
lished. Hydrogen adsorption is shown to be governed by the capacity and the energy of adsorption.
DOI: 10.1134/S1061933X08010171
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