Hostname: page-component-6bf8c574d5-w79xw Total loading time: 0 Render date: 2025-02-20T14:38:32.102Z Has data issue: false hasContentIssue false
  • English
  • Français

Auger Electron Spectroscopy of Amorphous Cu-30 at.% ZR Activated for Catalysis

Published online by Cambridge University Press:  28 February 2011

Fabiano Vanini ,
Mebmet Erbudak ,
Gernot Kostorz  and
Alfons Baiker
Fabiano Vanini
Affiliation:
Institut für Angewandte Physik, ETH Zurich, CH-8093 Zürich, Switzerland
Mebmet Erbudak
Affiliation:
Institut für Angewandte Physik, ETH Zurich, CH-8093 Zürich, Switzerland
Gernot Kostorz
Affiliation:
Institut für Angewandte Physik, ETH Zurich, CH-8093 Zürich, Switzerland
Alfons Baiker
Affiliation:
Technisch-Chemisches Laboratorium, ETH Zürich, CH-8092 Zürich, Switzerland
Get access

Abstract

Amorphous Cu70Zr30 ribbons heat treated at 473 K in a hydrogen atmosphere yield a very active catalyst for the hydrogenation of ethene and buta-diene. The catalytic activity is due to finely dispersed Cu particles formed on a surface containing numerous cracks. Auger depth profiles and scanning electron micrographs reveal details of the surface chemistry and morphology. The observations are related to the free-energy curve of bulk amorphous Cu-Zr.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 111: Symposium O – Microstructure and Properties of Catalysts , 1987 , 375
Copyright
Copyright © Materials Research Society 1988

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

1. Cahn, R.W., in Physical Metallurgy, 3rd ed., (edited by Cahn, R.W. and Haasen, P.), pp.1779–1852. Elsevier, Amsterdam (1983).Google Scholar
2. Yamashita, H., Yoshikawa, M., Kaminade, T., Funabiki, T. and Yoshida, S., J. Chem. Soc., Faraday Trans. 1, 82, 707 (1986).Google Scholar
3. Shibata, M., Ohbayashi, Y., Kawata, N., Masumoto, T. and Aoki, K., J. Catal. 96, 296 (1985).CrossRefGoogle Scholar
4. Baris, H., Katalytische Studien an amorphen Fe-Zr- und Cu-Zr-Legierungen, Dissertation ETH Nr. 8227 (1987).Google Scholar
5. Vanini, F., Büchler, St., Yu, Xin-nan, Erbudak, M., Schlapbach, L. and Baiker, A., Surf. Sci. 189/190, 1117 (1987).CrossRefGoogle Scholar
6. Baiker, A., Baris, H., and Güntherodt, H.J., Applied Catalysis 22, 389 (1986).CrossRefGoogle Scholar
7. Bas, E.B., Gisler, E. and Stucki, F., J. Phys. E17, 405 (1984).Google Scholar
8. Gisler, E. and Bas, E.B., Vacuum 36, 715 (1986).CrossRefGoogle Scholar
9. Andersen, H.H. and Bay, H.L., in Sputtering by Particle Bombardment I, Topics of Applied Physics (edited by Behrisch, R.), Vol.47, pp. 145–218. Springer, Heidelberg (1981).CrossRefGoogle Scholar
10. Sen, P., Sarma, D.D., Budhani, R.C., Chopra, K.L., and Rao, C,N,R, J. Phys. F: Met. Phys. 14, 565 (1984)CrossRefGoogle Scholar
11. Vanini, F., Erbudak, M., Kostorz, G. and Baiker, A., to be published.Google Scholar