Rare-earth-based tungstates ceramic nanomaterials: recent advancements and technologies

Rare-earth tungstates are negatively charged oxytungstate ions widely investigated in luminescence and catalysis fields. In addition, tungstate ions can easily polymerize to form polytungstates. However, only few materials containing essential tungstates are reported; therefore, the wide range applications of tungstate-based materials in modern industries are limited. In this chapter, primarily, the controlled synthesis and properties of tungstate-based materials are discussed. Furthermore, the various tungstate-based materials are explained/categorized by collecting the novel materials in this field such as rare-earth oxides, oxysalts, etc. Finally, this chapter presents the application of tungstate-based materials in modern technologies such as energy conversion and storage. With the newly developed technologies, it is critical to develop more rare-earth tungstate- based materials particularly in nanostructures as well as their advanced applications in the future, since these are often vague and long-winded.