Hydrogen storage in metal and complex hydrides is the phase transformation of hydrogen from gas to solid at a temperature above the critical point of hydrogen. Two factors have to be considered for the construction of a solid hydrogen storage system, i.e. the volume expansion upon hydrogen absorption (approx. 20Vol%) and the heat effect due to the entropy change of the hydrogen gas (S₀ = 130 J K^-1 mol^-1). Furthermore, most hydrides decompose into a fine powder (grain size 10 - 100 mm) upon hydrogen absorption. The density of the powder material  is  approximately 70% of the density of the bulk material.

Projects

• Construction of various size hydrogen storage systems for demonstration projects.
• Construction of a new pcT-analyzer for hydrides (Activation, pcT, BET, Kinetics)
• Investigation of the safety parameters of new hydride materials.
• Investigation of the safety parameters of hydrogen storage systems.
• Development of the safety standards for the operation of hydrogen storage systems.