Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-25T05:22:16.542Z Has data issue: false hasContentIssue false
  • English
  • Français

Comparison of Nanocrystalline and Polycrystalline Oxide Supports for Catalytic Oxidation of Methane

Published online by Cambridge University Press:  10 February 2011

Horst H. Hahn ,
Heiko Hesemann ,
William S. Epling  and
Gar B. Hoflund
Horst H. Hahn
Affiliation:
Darmstadt University of Technology, FB 21-Materials Science Department, FG Thin Films, Petersenstr. 23, 64287 Darmstadt, Germany
Heiko Hesemann
Affiliation:
Darmstadt University of Technology, FB 21-Materials Science Department, FG Thin Films, Petersenstr. 23, 64287 Darmstadt, Germany
William S. Epling
Affiliation:
Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA, fax: 001–352–392–9513
Gar B. Hoflund
Affiliation:
Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA, fax: 001–352–392–9513
Get access

Abstract

Nanocrystalline and polycrystalline ZrO2, CeO2 and Mn3O4 without and with 5 wt% Pd have been tested for methane oxidation. The nanocrystalline catalysts perform better than the polycrystalline catalysts on a weight basis. Nanocrystalline (n)-CeO2 performs much better than n-ZrO2, and both perform much better than polycrystalline (P)-CeO2 and P-ZrO2. 5 wt% Pd/n-ZrO2 is the best catalyst tested, but 5 wt% Pd/n-CeO2 performs nearly as well. A 20 wt% Ag/p-ZrO2 and a 20 wt% Ag/n-ZrO2 catalyst were also tested. The Ag yields a significant improvement over the bare supports, but not as much so as Pd.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 497: Symposium Z – Recent Advances in Catalytic Materials , 1997 , 35
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. Cullis, C.F. and Willat, B.M., J. Catal. 86(1984)187.10.1016/0021-9517(84)90359-2Google Scholar
2. Seimanides, S. and Stoukides, M., J. Catal. 98(1986)540.Google Scholar
3. Ribeiro, T.H., Chow, M. and Betta, R.A., J. Catal. 146(1994)537.Google Scholar
4. Epling, W.S. and Hoflund, G.B., to be published.Google Scholar