Combination of ceria (CeO2) and titania (TiO2) for being used as support is of interest due to the thermal stability and high oxygen storage capacity of ceria combining with a high content of oxygen vacancies of titania. Moreover, TiO2 also has strong interactions with copper (Cu) to maintain the metallic states. In this work, various contents of Cu loaded on mesoporous (MSP) CeO2-TiO2 (Cu/MSP CeO2-TiO2) were prepared by nanocasting using MCM-48 (with surface area of around 1,350 m2/g) as a hard template, followed by deposition-precipitation (DP) methods, and studied their characteristics and temperature programming reduction (TPR). It was found that the synthesized MSP CeO2-TiO2 support had high surface area of 195.3 m2/g, and the surface area decreased with the Cu content. All Cu/MSP CeO2-TiO2 catalysts exhibited high dispersion of Cu in the support while maintaining the fluorite structure. The reduction temperature of Cu/MSP CeO2-TiO2 catalysts also decreased when increasing the Cu content, except 9%Cu/MSP CeO2-TiO2.

Synthesis and characterization of Cu loaded on mesoporous CeO2-TiO2

255th National Meeting (2018)

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