Molybdenum oxide

Molybdenum oxide powder is a gray-black, special physico-chemical properties, through a variety of methods of preparation and in the iron and steel metallurgy, electronics industry, chemical catalysts and other important applications in many areas of the dioxide powder.

Properties

Chemical formula: MoO₂.

Appearance: Generally in the form of gray-black powder with metallic luster.

Crystal structure: It belongs to monoclinic crystal system, in its crystal structure, molybdenum atoms and oxygen atoms are combined through covalent and ionic bonds to form a stable spatial network structure, which gives it unique physical and chemical properties.

Density: approx. 6.44 g/cm³.

Melting point: up to about 1800 ℃, which makes it in the high temperature environment can still maintain a good physical state, has a good thermal stability, can be used in some applications require high temperature materials.

Hardness: Mohs hardness of about 5.5, with a certain degree of hardness, can enhance its performance in wear-resistant materials and other applications.

Oxidizing and reducing properties: Molybdenum dioxide has certain oxidizing properties and can be reduced to molybdenum metal under certain conditions. At the same time, it also shows a certain reducibility, and can be oxidized to higher valence molybdenum oxides, such as molybdenum trioxide, in the presence of strong oxidizing agents.

Acid-base: It is an amphoteric oxide that reacts with acids to form the corresponding salts and water, and also with strong bases to form molybdates and water. For example, it reacts with hydrochloric acid to form molybdenum chloride and water, and with sodium hydroxide to form sodium molybdate and water.

Applications

Iron and steel metallurgy: Molybdenum oxide powder is an important alloy additive in steel production. It can improve the mechanical properties of steel such as strength, hardness, toughness and wear resistance, and also improve the corrosion and heat resistance of steel, widely used in the manufacture of high-strength alloy steel, stainless steel, tool steel and other types of special steel.

Electronic industry: Due to its good electrical conductivity and thermal conductivity, molybdenum oxide powder can be used in the preparation of electronic components in the electrode materials, conductive paste, electronic packaging materials. For example, in the manufacture of thin film transistors, integrated circuits and other electronic devices, it can be used as an important conductive and thermally conductive medium.

Chemical catalysis: As an effective catalyst or catalyst carrier, MoO₂ powder plays an important role in many chemical reactions. It can be used in hydrodesulfurization and denitrification reactions in petrochemical industry, as well as oxidation and dehydrogenation reactions in organic synthesis, etc. It can improve the selectivity and conversion rate of the reaction, reduce the reaction temperature and pressure, and thus reduce the production cost.

Ceramic materials: added to the ceramic matrix, can significantly improve the mechanical properties, electrical properties and thermal properties of ceramics. For example, it can be used to prepare high-performance ceramic tools, ceramic sensors, ceramic capacitors, etc., and improve the service life and reliability of ceramic products.

Energy storage: Molybdenum oxide has potential applications in the field of energy storage such as lithium-ion batteries. Its unique crystal structure and chemical properties enable it to be used as an electrode material to reversibly embed and detach lithium ions, thus realizing the charging and discharging process of the battery, with high theoretical specific capacity and good cycle stability.