Nanostructures of rare earth oxides (Ho₂O₃ and Nd₂O₃): Synthesis methods, properties, and comparative analysis

Nanostructures composed of rare earth oxides, specifically Ho₂O₃ and Nd₂O₃, exhibit a range of desirable characteristics. Notably, neodymium oxides are renowned for their distinctive electrical and optical properties. Consequently, the development of rare earth oxide nanostructures, encompassing the aforementioned compositions, has emerged as a prominent area of research. The introductory section provides an overview of recent advancements pertaining to diverse applications of these nanostructures. Due to the technological significance of this class of materials, various methods for synthesizing these rare earth oxides have been introduced. This review provides a comprehensive description and examination of the synthesis of Ho₂O₃ and Nd₂O₃ nanostructures through different techniques. Finally, a comparative analysis is conducted, considering aspects such as methodology, efficiency, morphology, and grain size of the resulting samples.