“…The control of ceria morphological properties, such as particle size and distribution, crystallinity, surface area, and pore size, is a matter of great interest for its application to electrodes and electrolytes, ceramic monoliths, and catalytic formulations. , Indeed, it has been extensively shown that the morphology of CeO 2 heavily influences its performance in many catalytic reactions, − improves its oxygen storage capacity, − increases thermal stability, − promotes the metal–support interaction of supported metals, − has a high ionic conductivity as electrolyte in solid oxide fuel cells, and improves the mechanical and thermal stability of electrode layers. − In addition, recent advances in structured catalyst preparation have proposed 3D printing as a method to prepare cell-based monoliths composed entirely of the support oxide, − and it is well known that the size, shape, and distribution of starting powders is key to obtaining a printed manufact with solid mechanical resistance , as well as to improving flowability and processability in a scaled-up outlook …”