Transition metal molybdates are a class of inorganic compounds that consist of transition metals coordinated with the anionic molybdate ion (MoO4^2-). These materials exhibit diverse structural and electronic properties, depending on the specific combination of metal cations and anions. Common transition metals used in these compounds include iron, nickel, copper, and tungsten, among others. Transition metal molybdates are widely utilized in various applications due to their unique chemical and physical characteristics. They are employed as catalysts in organic synthesis reactions, where they can facilitate the conversion of substrates with high selectivity and efficiency. Additionally, these compounds display promising properties for use in energy storage systems such as supercapacitors and batteries, benefiting from their excellent electrochemical stability and high redox capacity. Furthermore, transition metal molybdates show potential in environmental remediation processes, particularly in the removal of heavy metals from contaminated water and soil. Their ability to form stable complexes with various metal ions makes them effective for capturing pollutants. In summary, transition metal molybdates are versatile materials with broad applications across multiple fields due to their structural diversity and functional properties.