Chapter 2. Durability of Automobile Catalysts

  1. William Smothers
  1. K. Otto,
  2. W. B. Williamson and
  3. H. S. Gandhi

Published Online: 28 MAR 2008

DOI: 10.1002/9780470291085.ch2

Proceedings of the 9th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 2, Issue 5/6

Proceedings of the 9th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 2, Issue 5/6

How to Cite

Otto, K., Williamson, W. B. and Gandhi, H. S. (1981) Durability of Automobile Catalysts, in Proceedings of the 9th Automotive Materials Conference: Ceramic Engineering and Science Proceedings, Volume 2, Issue 5/6 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291085.ch2

Author Information

  1. Ford Motor Co. Dearborn, Mich. 48121

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1981

ISBN Information

Print ISBN: 9780470373897

Online ISBN: 9780470291085

SEARCH

Keywords:

  • catalysts;
  • deactivation;
  • exhaust;
  • phenomenon;
  • simulated

Summary

The durability of automotive catalysts depends on a number of complex influences, which are not always easily identified or separated. In this review the most important modes of physical and chemical deactivation affecting current and experimental automotive catalysts are discussed, and specific deactivation processes are illustrated by selected examples. Such deactivation processes include the chemical interaction between a catalytic site and exhaust components, thermal deactivation by sintering or alloying, and mechanical losses of the active components by spoiling or abrasion. The role of the support materials in the preservation of catalyst activity is stressed.