Can I read Study on the combustion behavior of methane over Ce–Zr-modified Pd/Al2O3 catalysts on EtoBox?

Study on the combustion behavior of methane over Ce–Zr-modified Pd/Al2O3 catalysts by Baohua Yue; Renxian Zhou; Yuejuan Wang; Xiaoxiang Han; Xiaoming Zheng is a Materials Science article available to read on EtoBox.

What is Study on the combustion behavior of methane over Ce–Zr-modified Pd/Al2O3 catalysts about?

The effects of ceria and zirconium additions to alumina-supported palladium catalysts on methane combustion behavior have been investigated. A series of Ce-Zr-modified Al 2 O 3 supports and their supported Pd catalysts are prepared using impregnation method and then characterized by BET, XRD, LR, TEM, XPS techniques. The results show that the addition of Ce-Zr improves the thermal stability of alumina. The thermal stability of alumina increases with increasing the loading of Zr. The methane oxidation activity and thermal stability is found to be dependent on the Ce:Zr ratio over the Pd/Ce x Zr 1Àx /Al 2 O 3 catalysts. The Pd/ Ce 0.2 Zr 0.8 /Al 2 O 3 exhibits the highest activity and thermal stability for methane oxidation. The temperatures for the 90% methane conversion are 448 and 455 8C for the Pd/Ce 0.2 Zr 0.8 /Al 2 O 3 catalysts calcined at 500 and 1100 8C, respectively. TEM results show that the particle size of Pd is not the key factor influencing the activity of Pd/Ce 0.2 Zr 0.8 /Al 2 O 3 catalyst. An induction period is present during methane combustion reaction for the Pd/Al 2 O 3 and Pd/Ce x Zr 1Àx /Al 2 O 3 catalysts (calcined at 1100 8C), but the lengths of induction pe

Who reads Study on the combustion behavior of methane over Ce–Zr-modified Pd/Al2O3 catalysts?

Author

Baohua Yue; Renxian Zhou; Yuejuan Wang; Xiaoxiang Han; Xiaoming Zheng

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-4332)

Published

2005

Language

EN

Field

Materials Science (Physical Sciences)