The reaction of gaseous H₂ and a metal alloy forming a metal hydride (including the back-reaction) can be employed for various technical applications:
Hydrogen storage (stationary, mobile, portable)
Hydrogen purification (purity level 7.0 and better)
Hydrogen separation from gas mixtures (e.g. H₂-CH₄)
Hydrogen gettering
Thermochemical devices:
- Hydrogen compressors
- Thermoboosters
- Heat storage
- Heat pumps
Thermochemico-mechanical actuators
Electrochemical applications (e.g. battery electrodes)
Electronic applications (e.g. sensors)
Optical applications (e.g. switchable mirrors)