metallhydrid

Metallhydrid is a chemical compound formed between a metal and hydrogen. The hydrogen atoms are typically incorporated into the crystal lattice of the metal, often occupying interstitial sites. The stoichiometry of metallhydrides can vary widely, with some metals forming well-defined compounds and others exhibiting a broad range of hydrogen content.

The properties of metallhydrides are diverse and depend heavily on the specific metal and the hydrogen concentration. Many metallhydrides are solid materials, exhibiting metallic or ceramic-like characteristics. Some are brittle, while others can be ductile. The electrical conductivity of metallhydrides can range from highly conductive to semiconducting or even insulating, often differing significantly from the parent metal. Thermally, metallhydrides can be stable or decompose readily upon heating, releasing hydrogen gas.

Metallhydrides have found several important technological applications. Their ability to absorb and release large amounts of hydrogen at moderate temperatures makes them attractive for hydrogen storage in applications such as fuel cell vehicles and stationary power systems. They are also used in metal refining, as catalysts in chemical reactions, and in some forms of batteries and hydrogen purification processes. The research into new metallhydride materials continues, driven by the need for more efficient and cost-effective hydrogen storage and utilization solutions.