What is Molybdenum Tungsten Silicon Heteropoly Acid?

Molybdosilicotungstic Acid, Heteropoly Molybdotungstosilicic Acid

) is a complex inorganic compound consisting of ions of molybdenum, tungsten, silicon and oxygen. Its chemical formula is usually expressed as H4[SiMo12O40] or H4[SiW12O40], where SiMo12O40 and SiW12O40 represent silicomolybdate ions and silicotungstate ions, respectively. Molybdenum tungsten silicopolyacid is a polynuclear heteropolyacid with a highly complex structure. It consists of a central silicon atom and 12 molybdenum or tungsten atoms forming a core structure, surrounded by a cage structure of oxygen atoms. Heteropolyacids usually exist in the form of acidic solutions. Molybdenum tungsten silicopolyacid has a wide range of applications in the fields of chemistry and material science. Due to its special structural and chemical properties, it has been widely studied as a catalyst, electrocatalyst, photocatalyst, and building block of materials. It exhibits excellent catalytic activity in many important chemical reactions, such as oxidation reactions, acid-base catalysis, oxygen reduction reactions, etc. In addition, molybdenum tungsten heteropoly acid also has the potential of electrocatalysis and photocatalysis, such as in the fields of batteries, fuel cells and optoelectronic devices.

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