2. Hydrogen storage by adsorption
2.1 Principle
Hydrogen adsorption is a physical surface phenomenon that occurs when gas is exposed to a solid. The gas density at the solid surface increases in the vicinity of an interface (cf. figure 3 ). This increase is due to the interactions between adsorbate (gas) and adsorbent (solid), which are of the van der Waals type and comprise an attractive term and a repulsive term that depend on the gas-solid distance (physisorption phenomenon).
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Hydrogen storage by adsorption
Comparison with other storage technologies: hydrogen in all its states
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