RutheniumIVoxid

Ruthenium(IV) oxide, with the chemical formula RuO2, is an inorganic compound. It is a dark brown to black solid that is insoluble in water. Ruthenium(IV) oxide is known for its metallic luster and high electrical conductivity, making it a semiconductor. It crystallizes in the rutile structure, similar to titanium dioxide.

The compound can be prepared through various methods, including the thermal decomposition of ruthenium salts in the presence of oxygen or the oxidation of ruthenium metal at elevated temperatures. It is also a common byproduct in some ruthenium extraction and refining processes.

Ruthenium(IV) oxide has found applications in several fields. Its electrical conductivity makes it useful in the fabrication of electrodes for electrochemical processes, such as in the chlor-alkali industry. It is also employed as a component in certain catalytic converters and as a material for fabricating microelectronic devices. Furthermore, it has been investigated for its potential use in supercapacitors due to its charge storage capabilities. The stability and electrocatalytic properties of ruthenium(IV) oxide contribute to its utility in these diverse applications.