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The Raft-Like Structure of Supported PtRu5

Published online by Cambridge University Press:  10 February 2011

J. C. Yang ,
S. Bradley ,
M. N. Nashner ,
R. Nuzzo  and
J. M. Gibson
J. C. Yang
Affiliation:
Frederick Seitz Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
S. Bradley
Affiliation:
UOP, 50 East Algonquin Road, Des Plaines, IL 60017
M. N. Nashner
Affiliation:
Frederick Seitz Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
R. Nuzzo
Affiliation:
Frederick Seitz Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
J. M. Gibson
Affiliation:
Frederick Seitz Material Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801
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Abstract

We have examined supported PtRus specimens by a variety of electron microscopy techniques, including high resolution, analytical and a novel mass-spectroscopic electron microscopy techniques. Analytical electron microscopy results showed that the relative atomic concentration of Pt to Ru for each PtRu5 cluster is 1 to 5. The average diameter of the clusters was a 15.6Å, and the average number of atoms was measured to be 24 atoms per cluster. The combination of these techniques demonstrate that the PtRu5 clusters are raft-like on the carbon black support.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 497: Symposium Z – Recent Advances in Catalytic Materials , 1997 , 109
Copyright
Copyright © Materials Research Society 1998

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References

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