Palladium-based alloy and monometallic catalysts for gas phase hydrogenation of crotonaldehyde: effects of alloying and alloy crystallite size
Gas phase hydrogenation of crotonaldehyde has been investigated with supported Pd catalysts using different supports. The overall conversion and product distribution significantly depend on the supports used. Crotyl alcohol is formed along with butyraldehyde as the chief products in comparable quant...
Saved in:
Published in | Applied catalysis. A, General Vol. 283; no. 1; pp. 255 - 263 |
---|---|
Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
08.04.2005
Elsevier |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Gas phase hydrogenation of crotonaldehyde has been investigated with supported Pd catalysts using different supports. The overall conversion and product distribution significantly depend on the supports used. Crotyl alcohol is formed along with butyraldehyde as the chief products in comparable quantities with Pd/ZnO, while little crotyl alcohol is formed with such catalysts as Pd/Al
2O
3 and Pd/SiO
2. The difference in the product distribution is due to the difference in the active species, which is PdZn alloy in Pd/ZnO but is Pd in the other catalysts. The activity of Pd/ZnO decreases slightly with the size of PdZn alloy crystallites, but the selectivity to crotyl alcohol increases and that to butyraldehyde decreases. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0926-860X 1873-3875 |
DOI: | 10.1016/j.apcata.2005.01.015 |