Transition metal stannates are a class of inorganic compounds featuring tin (Sn) and transition metals such as iron, cobalt, nickel, or copper. These materials often exhibit unique electronic, magnetic, and catalytic properties due to the presence of both Sn(II) and Sn(IV) oxidation states within their structure. Transition metal stannates are of significant interest in various fields including energy storage, catalysis, and electronics. These compounds can be synthesized through a variety of methods such as solid-state reactions, hydrothermal routes, or sol-gel techniques. Their crystal structures range from simple rocksalt-type to complex perovskite-like arrangements, depending on the specific elements involved and the synthetic conditions used. In terms of applications, transition metal stannates have shown promising potential in battery electrodes due to their high theoretical capacities and good structural stability. Additionally, these materials are also investigated for use as catalytic supports or active sites in various chemical reactions owing to their unique electronic properties. Overall, the study and development of transition metal stannate compounds continue to expand our understanding of their fundamental properties and broaden their potential technological applications.