| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10238951 | Applied Catalysis A: General | 2005 | 9 Pages |
Abstract
The effects of rare earths (La, Pr, Nd, Sm and Y) addition to Pd/Ce-Zr/Al2O3 catalyst have been investigated. The supported Pd catalysts are characterized by BET, XRD, XPS, TEM, TPR, TPO and TPSR techniques. Activity tests in methane combustion show that the addition of Y or Sm obviously improves the catalytic activity of Pd/Ce-Zr/Al2O3 catalyst, and the Pd/Ce-Zr-Y/Al2O3 shows the highest catalytic activity and thermal stability. The addition of Y to Pd/Ce-Zr/Al2O3 inhibits the site growth and decomposition of PdO particles and improves the reduction-reoxidation properties of the active PdO species, which increases the catalytic activity and thermal stability of the Pd/Ce-Zr/Al2O3 catalyst.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Baohua Yue, Renxian Zhou, Yuejuan Wang, Xiaoming Zheng,