CuO-CeO2 composites: Synthesis from mixed sols

- The main contribution to the formation of specific surface makes CeO2.
- Samples have a mesoporous structure with narrow pore size distribution.
- The smaller particle size of ceria in CuO-CeO2 composite is due to the presence of a protective shell on the ceria surface of CuO particles in sols by hetero-coagulation behavior.