초록 |
Ceria-zirconia mixed oxide is an important component as oxygen storage material in three-way catalysts. Also rhodium plays an important role to improve the reduction property of ceria-zirconia mixed oxide because it can activate the reducing agent, i.e. H2. Continuous hydrothermal synthesis in supercritical water was used as a new synthesis method to obtain ceria-zirconia mixed oxides with better OSC. Redox properties of rhodium-loaded ceria-zirconia mixed oxides were investigated through physical characterizations with nitrogen adsorption, TPR, and oxygen-uptake. |