structural:reformatting
Hydrogen storage

Palladium readily adsorbs hydrogen at room temperatures, forming palladium hydride PdH with x less than 1. While this property is common to many transition metals, palladium has a uniquely high absorption capacity and does not lose its ductility until x approaches 1. This property has been investigated in designing an efficient and safe hydrogen fuel storage medium, though palladium itself is currently prohibitively expensive for this purpose. The content of hydrogen in palladium can be linked to magnetic susceptibility, which decreases with the increase of hydrogen and becomes zero for PdH. At any higher ratio, the solid solution becomes diamagnetic.

Palladium is used for purification of hydrogen on a laboratory but not industrial scale.