Abstract
Results of structural refinements and catalytic evaluation of a series of palladium supported ceria-zirconia synthesized through a surfactant-assisted technique were reported. It was found that zirconium addition to ceria leads to a crystalline structure distortion and inhibits the crystal growth at high temperature. Rietveld refinements confirm that all the ceria-zirconia samples have nanocrystals with cationic defects in their structures. The Pd-supported catalysts were very active for both CO and propane complete oxidation. The best catalyst 3wt%Pd/Ce0.8Zr0.2O2 has a light-off temperature (T50) as low as 120°C for CO oxidation and 180°C for C3H8 combustion.
Original language | English |
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Pages (from-to) | 879-882 |
Number of pages | 4 |
Journal | Journal of Sol-Gel Science and Technology |
Volume | 26 |
Issue number | 1-3 |
DOIs | |
State | Published - Jan 2003 |
Externally published | Yes |
Keywords
- CO and propane combustion
- Catalyst
- Rietveld refinement
- Zirconia-ceria