Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-28T02:27:42.504Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Singhal, A., Yang, J.C. and Gibson, J.M., Ultramicroscopy. 67, 191–206 (1997).10.1016/S0304-3991(96)00094-0Google Scholar
2. Radmilovic, V., Gasteiger, H.A. and Ross, J. P. N., Journal of Catalysis, 154, 98–106 (1995).Google Scholar
3. Nashner, M. S., Frenkel, A. I., Adler, D. L., Shapley, J. and Nuzzo, R., J. of Am. Cer. Soc., to be published (1997).Google Scholar
4. Hansen, M., Constitution of Binary Alloys. 2 ed. McGraw-Hill (1958).10.1149/1.2428700Google Scholar
5. Prestridge, E. B., Via, G.H. and Sinfelt, J.H., J. of Catalysis. 50, 115–123 (1977).Google Scholar
6. Nellist, P. D. and Pennycook, S.J., Science. 274, 413–415 (1996).Google Scholar
7. Kirkland, E. J. and Thomas, M.G., Ultramicroscopy. 62, 79–88 (1996).Google Scholar