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Structure of Supported Metal Catalysts Derived from Molecular Bimetallic Clusters

Published online by Cambridge University Press:  28 February 2011

M. J. Kelley
Affiliation:
Engineering Technology Laboratory, Building 304, Experimental Station, E. I. du Pont de Nemours & Co., Inc., Wilmington, DE 19898.
A. S. Fung
Affiliation:
Center for Catalytic Science and Technology, Department of Chemical Engineering, University of Delaware, Newark DE 19716
M. R. McDevitt
Affiliation:
now at Department of Chemistry, Drexel University, Philadelphia, PA 19104
P. A. Tooley
Affiliation:
now at Phillips Petroleum Company, Bartlesville, OK.
B. C. Gates
Affiliation:
Center for Catalytic Science and Technology, Department of Chemical Engineering, University of Delaware, Newark DE 19716
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Abstract

Re-containing molecular bimetallic clusters were used as precursors for gamma alumina supported catalysts. Characterization by XPS and XAS after hydrogen reduction showed Re valence states in the order Re monometallic > Re-Os bimetallic > Re-Pt bimetallic > zero. These results suggest that industrial bimetallic catalysts are not best understood in terms of alloys, but rather as multifunctional, with each element contributing its own activity.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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