Palladium-silver bimetallic catalysts with improved activity and selectivity for ethylene epoxidation Academic Article

abstract

• Palladium addition to silver catalysts for ethylene epoxidation increases both catalyst activity and selectivity to ethylene oxide. These results confirm the predictions from density functional theory calculations that Pd-Ag bimetallics should improve selectivity relative to unpromoted silver. The performance of Pd-Ag catalysts is similar to that of Cu-Ag catalysts investigated previously, although the maximum selectivity obtained for the optimum Pd-Ag catalyst in the present study exceeds that achieved with Cu-Ag catalysts. Although there is evidence for greater complexity in the structure of these catalysts than has been incorporated in DFT models, these results provide an important additional example of catalyst identification and design from first principles. 2010 Elsevier B.V. All rights reserved.

authors

• Barteau, Mark

published proceedings

• APPLIED CATALYSIS A-GENERAL

author list (cited authors)

• Dellamorte, J. C., Lauterbach, J., & Barteau, M. A.

citation count

• 24

complete list of authors

• Dellamorte, JC||Lauterbach, J||Barteau, MA

publication date

• January 2011

publisher

• Elsevier  Publisher

published in

• Applied Catalysis A: General  Journal

keywords

• Bimetallic Catalysts
• Catalyst Design
• Ethylene Oxide
• High-throughput Reactor
• Olefin Epoxidation
• Palladium
• Silver

Digital Object Identifier (DOI)

• 10.1016/j.apcata.2010.06.023

start page

• 281

end page

• 288

volume

• 391

issue

• 1-2

URL

• http://dx.doi.org/10.1016/j.apcata.2010.06.023