Hydrogen intercalation into carbon

A mathematical model describing the processes of AC charging-discharge with account for EDL charging, intercalation of hydrogen into carbon, and its nonsteady-state solid-phase diffusion, electrode kinetics, ion transport over the electrode thickness, and characteristics of its porous structure was developed and confirmed experimentally. It is shown that the maximum path of diffusion of hydrogen atoms all other conditions being equal is inversely proportional to the hydrophilic specific surface area of the electrode. 

In the process of hydrogen insertion into the carbon network, it seems that especially defective domains can adsorb hydrogen more preferably (Fig. 9.14). However, the filling of graphene layers through an intercalation phenomenon is still controversial. 

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