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Cerium dioxide catalytic materials

A second example of the application of laser ablation was reported by Chmielowska et al. [260]. The authors carried out structural analysis of thin cerium dioxide films doped with copper, which were produced for applications as catalytic gas sensors. The thin films deposited on a silicon substrate had a nanocrystalline structure with a well-developed texture. The morphology, as well as the preferred orientation of the films, changed with the volume fraction of copper. The observed variations were found to affect the catalytic properties of the materials. [Pg.102]

Catalytic activity of the anode material YSZ-cerium dioxide was tested for possible use in fuel-cell reactors, as a high-active component but is sensitive to hydrogen (Nakagawa et al. 2001). [Pg.1196]

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. [Pg.247]


See other pages where Cerium dioxide catalytic materials is mentioned: [Pg.82]    [Pg.855]    [Pg.314]    [Pg.82]    [Pg.894]    [Pg.229]    [Pg.1]    [Pg.247]    [Pg.248]    [Pg.110]   
See also in sourсe #XX -- [ Pg.2 ]




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CATALYTIC MATERIALS

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