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Spatial distribution of cerium valence in model planar Pd/Ce0.7Zr0.3O2 catalysts
- Source :
-
Journal of Catalysis . Apr2013, Vol. 300, p201-204. 4p. - Publication Year :
- 2013
-
Abstract
- Abstract: The spatial distribution of cerium valence in H2-reduced model planar Pd/Ce0.7Zr0.3O2 catalysts was determined by electron energy loss spectroscopy (EELS) in a scanning transmission electron microscope (STEM). Spherical reduction zones were found beneath each Pd particle, consistent with a Pd-catalyzed, oxygen anion diffusion-limited bulk oxide reduction process. Evidence was also found for a more extended surface reduction process, possibly associated with hydrogen spillover from the Pd particles. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00219517
- Volume :
- 300
- Database :
- Academic Search Index
- Journal :
- Journal of Catalysis
- Publication Type :
- Academic Journal
- Accession number :
- 86025582
- Full Text :
- https://doi.org/10.1016/j.jcat.2013.01.013