volume 47, issue 12, P1656-1663 2007
DOI: 10.1088/0029-5515/47/12/003
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Abstract: A multi-scale model for particle diffusion in porous structures is used to study the effect of the porous internal structure of graphite on atomic hydrogen transport and inventory in graphite. The diffusion of trace amounts of atomic hydrogen are modeled as a trapping-detrapping mechanism within the porous network typical in graphites. Activation energies for the different traps are taken from experiments and from molecular dynamics simulations. It is seen that by varying the size of the voids between granules…

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