järnhydrider

Järnhydrider är kemiska föreningar som innehåller järn och väte. De är inte så välstuderade som hydrider av andra metaller. Iron hydride is not a stable compound under normal conditions. While iron can absorb hydrogen, it does not form a well-defined, stoichiometric hydride in the same way that some other metals do. The interaction of iron with hydrogen is more complex and can involve solid solutions or surface phenomena.

When iron is exposed to hydrogen, particularly at elevated temperatures and pressures, hydrogen atoms can dissolve into the iron lattice. This process is known as hydrogen absorption. In some cases, this can lead to changes in the iron's mechanical properties, such as embrittlement, which is a phenomenon where the metal becomes more brittle and prone to fracture.

The term "järnhydrid" might sometimes be used informally to refer to iron that has absorbed significant amounts of hydrogen. However, from a strict chemical definition, a distinct solid compound of iron and hydrogen with a fixed stoichiometric ratio is not commonly recognized or isolated under standard laboratory conditions. Research into the behavior of iron-hydrogen systems is ongoing, particularly in areas related to catalysis and materials science where the interaction between hydrogen and metal surfaces is important.