Along with palladium, the metal absorbs large volumes of hydrogen, retaining it at ordinary temperatures but desorbing it at red heat. The fact that the absorbed hydrogen is extremely reactive suggests that it is present either as atomic hydrogen or as a very reactive platinum hydrogen compound or complex.

Which metals can absorb hydrogen?

Many transition metals and alloys, such as Pd, Ti, La, Th, and FeTi, absorb a large quantity of hydrogen at relatively low temperatures and pressures.

Can platinum and palladium absorb hydrogen?

Platinum and palladium can absorb large volumes of hydrogen.