An auger electron spectroscopy study of SO2 adsorption on cerium-zirconium mixed metal oxides
Document Type
Conference Proceeding
Publication Date
1-1-2001
Abstract
Cerium-zirconium mixed metal oxides are used in conjunction with platinum group metals to reduce and eliminate pollutants in automotive emissions control catalyst systems. The ceria-zirconia promoter materials regulate the partial pressure of oxygen near the catalyst surface, thereby facilitating catalytic oxidation and reduction of gas phase pollutants. However, ceria-zirconia is particularly susceptible to chemical and physical deactivation through sulfur dioxide adsorption. The interaction of sulfur dioxide with ceria-zirconia model catalysts has been studied with Auger spectroscopy to develop fundamental information regarding the sulfur dioxide deactivation mechanism.
Publication Title
Studies in Surface Science and Catalysis
Recommended Citation
Nelson, A.,
&
Schulz, K.
(2001).
An auger electron spectroscopy study of SO2 adsorption on cerium-zirconium mixed metal oxides.
Studies in Surface Science and Catalysis,
139, 247-253.
http://doi.org/10.1016/s0167-2991(01)80204-4
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7415
