niobiumIV

Niobium(IV) is a chemical compound of niobium with the formula NbO2. It is a dark gray or black powder that is insoluble in water but soluble in acids. Niobium(IV) is primarily used as a precursor in the production of other niobium compounds and as a catalyst in various chemical reactions. It is also used in the production of superconducting materials, particularly niobium-titanium alloys, which are used in the construction of superconducting magnets for magnetic resonance imaging (MRI) machines and particle accelerators.

The compound can be prepared by the reduction of niobium(V) oxide (Nb2O5) with hydrogen or carbon at high temperatures. It is typically stored under an inert atmosphere to prevent oxidation. Niobium(IV) is a paramagnetic compound, meaning it is attracted to magnetic fields. It has a layered crystal structure, which contributes to its unique physical and chemical properties.

In addition to its industrial applications, niobium(IV) has been studied for its potential use in energy storage devices, such as batteries and supercapacitors, due to its high electrical conductivity and ability to undergo reversible redox reactions. However, the practical use of niobium(IV) in these applications is still under investigation.