Chapter 2. Durability of Automobile Catalysts
- William Smothers
Published Online: 28 MAR 2008
Copyright © 1982 The American Ceramic Society, Inc.
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
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1981
Print ISBN: 9780470373897
Online ISBN: 9780470291085
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.