“…7 Lin and Chowdhury 8 published a review on nanostructured cerium oxide and its various applications, especially several industrially important reactions, including lowtemperature CO oxidation, UV absorbing semiconductor materials, partial oxidation of hydrocarbons, hydrogenation of carbon oxides, and wastewater treatment. In this context, several strategies have been developed to obtain CeO 2 nanostructures with different morphologies, e.g., hydrothermal and solvothermal, and metal-organic chemical vapor deposition (MOCVD) [21][22][23][24] methods. Among these methods, hydrothermal treatments appear to be potentially interesting in terms of morphological variations.…”