| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9610245 | Catalysis Today | 2005 | 6 Pages |
Abstract
The CO chemisorption results indicate that it is possible to determine in an easy way the metallic dispersion of Pt/Al2O3 monometallic catalysts and that the same method can be applied to measure the exposed Pt on bimetallic Pt-Re and Pt-Sn catalysts and trimetallic Pt-Re-Sn catalysts. The values obtained from CO adsorption have very good repeatability and are proportional to the dehydrogenating activity of the catalyst. The latter correlation has a few outliners which were attributed to the electronic effects exerted by Sn and Re over Pt that modify differently the metal activity and the capacity to chemisorb CO.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Carlos L. Pieck, Carlos R. Vera, José M. Parera, Gustavo N. Giménez, Luciano R. Serra, Luciene S. Carvalho, Maria C. Rangel,