Impressive low reduction temperature of synthesized mesoporous ceria via nanocasting

• Ordered structure ceria was successfully synthesized via the nanocasting technique.
• A high surface area of 224.7 m2/g of the synthesized ceria was obtained.
• Only surface reduction was observed from the ordered mesoporous ceria.

Ceria or cerium oxide, with high surface area and ordered structure, was prepared by the nanocasting method using MCM-48 porous material as a hard template. Optimal conditions were investigated to obtain ordered mesoporous ceria having high surface areas of 224.7 m2/g and ordered structure with 50% weight ceria using 30 min stirring time at 100 °C evaporation temperature of solvent. The mesoporous ceria was characterized using various techniques. The Temperature-programmed reduction results provided only surface reduction temperatures at 400°–600 °C.

TPR profiles of the synthesized ceria resulted from different filling cycles.Figure optionsDownload as PowerPoint slide