HYDROGEN STORAGE

  • Hydrogen can be stored physically as either a gas or a liquid. Storage of hydrogen as a gas typically requires high-pressure tanks (350–700 bar [5,000–10,000 psi] tank pressure).


  • Storage of hydrogen as a liquid requires cryogenic temperatures because the boiling point of hydrogen at one atmosphere pressure is −252.8°C.


  • Hydrogen can also be stored on the surfaces of solids (by adsorption) or within solids (by absorption).