Metallihydridejä

Metallihydridejä are chemical compounds formed between a metal and hydrogen. These compounds exhibit a wide range of properties depending on the specific metal and the stoichiometry of the hydrogen incorporation. Some metals, particularly transition metals like palladium, nickel, and titanium, readily absorb hydrogen to form solid solutions or distinct hydride phases. The hydrogen atoms in these structures can occupy interstitial sites within the metal lattice.

The formation of metallihydrides is often reversible. This property makes them valuable in hydrogen storage applications, where hydrogen can be absorbed and released under controlled temperature and pressure conditions. The energy required for hydrogen release can be related to the stability of the metallihydride. Different metallihydrides have varying hydrogen storage capacities and kinetics, influencing their suitability for specific applications.

Beyond storage, metallihydrides find use as catalysts, particularly in hydrogenation reactions. Their ability to store and release hydrogen in situ can facilitate chemical transformations. They are also employed in sensors for detecting hydrogen gas due to the changes in their physical properties, such as electrical resistance, upon hydrogen absorption. Research continues into developing new metallihydrides with improved properties for energy storage and other technological advancements.