Development of Zr Containing TWC Catalysts

970466

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
Current major concerns m auto exhaust three-way conversion (TWC) catalyst are: 1) improved thermal stability for high temperature applications, such as low emission vehicles (LEV), and 2) high O2 storage capacity for on-board diagnostic (OBD) systems to meet OBD-2 regulations. These are challenges to catalyst technologies posed by the regulations. Of the many possible approaches, stabilization of Rh and CeO2 by ZrO2 shows promise in TWC formulations.
This paper summarizes our investigations of thermally stabilized Zr containing TWC catalysts, including the chemistry of CeO2 stabilization with ZrO2, and their OBD-2 characteristics.
Meta TagsDetails
DOI
https://doi.org/10.4271/970466
Pages
9
Citation
Yamada, T., Kobayashi, T., Kayano, K., and Funabiki, M., "Development of Zr Containing TWC Catalysts," SAE Technical Paper 970466, 1997, https://doi.org/10.4271/970466.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970466
Content Type
Technical Paper
Language
English