Effect of barium sulfate on sulfur resistance of Pt/Ce0.4Zr0.6O2 catalyst

Ceria zirconia solid solution (CZ) that contained BaSO4 was prepared by using coprecipitation method and was used as a supporter for preparing platinum catalyst. It is found that BaSO4 can be evenly distributed in the irregular mesoporous of the CZ. Furthermore, the addition of BaSO4 to the CZ is ab...

Full description

Saved in:
Bibliographic Details
Published in:Catalysis communications 2012-10, Vol.27, p.189-192
Main Authors: Zheng, Yong, Zheng, Ying, Xiao, Yihong, Cai, Guohui, Wei, Ke-Mei
Format: Article
Language:English
Subjects:
Catalyst
Ceria zirconia solid solution
Sulfur resistance
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ceria zirconia solid solution (CZ) that contained BaSO4 was prepared by using coprecipitation method and was used as a supporter for preparing platinum catalyst. It is found that BaSO4 can be evenly distributed in the irregular mesoporous of the CZ. Furthermore, the addition of BaSO4 to the CZ is able to improve the desorption amount of sulfur species under reducing atmosphere, which could decrease the accumulation of sulfur species in the catalyst. Consequently, sulfur poisoning resistance of the catalyst has improved. The results showed that the CZ has a strong adsorption capacity of the SO2. Adding BaSO4 to the CZ is able to improve the desorption amount of sulfur species under reducing atmosphere, which could decrease the accumulation of sulfur species in the catalyst. Consequently, it has enhanced the sulfur resistance of the catalyst. [Display omitted] ► BaSO4-doped ceria zirconia solid solution was successfully synthesized. ► Doped CZ could decrease the accumulation of sulfur species in the catalysts. ► The Pt/CZ–BaSO4 catalyst has a high performance of sulfur resistance.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2012.07.023