Hydrogen storage in zeolites

Hydrogen uptake at 77 K and 0.1 MPa have been studied in some aluminophosphate (AlPOs) molecular sieves [149], These materials are produced when the Si, located in tetrahedral sites, is 

The Physical Chemistry of Materials Energy and Environmental Applications 

To conclude this section, it is necessary to state that experimental hydrogen adsorption studies on zeolites at room temperature are scarce. It has been reported that zeolites can store only very small amounts of hydrogen ( 0.5 wt % at 60 bar) at room temperature [151]. In this regard, LSX zeolites, as well, fully exchanged with alkali-metal cations, that is, Li+, Na+, and K+, to get samples Li-LSX, Na-LSX, and K-LSX, were tested for their hydrogen storage capacities at 298 K and 10 MPa, and the measured H2 capacity was 0.6 wt % [38], 

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