A Hexa-Aluminate Automotive Three-Way Catalyst

2002-01-0736

03/04/2002

Event
SAE 2002 World Congress & Exhibition
Authors Abstract
Content
With emission regulations getting tighter and tighter, catalysts will need to be active at ever lower temperatures in order to meet future standards. To meet this need, automotive catalysts are being installed closer to the engine so as to be active immediately after start-up. In this location, catalysts must have high temperature durability.
In this paper, we examined a heat-resistant support material, “hexa-aluminate”, for possible use in future automotive catalysts.
Catalytic activity of hexa-aluminate was more better than La added γ - alumina after redox treatment in model gas and after engine aging. Since hexa-aluminate had the excellent thermal durability, and Pd, which are supported on it, maintains finer particles than those on La added γ-alumina.
We suggest that hexa-aluminate is a effective support material for automotive catalysts. More specifically, hexa-aluminate is expected to be a key technology for meeting the stringent emission standards of the future.
Meta TagsDetails
DOI
https://doi.org/10.4271/2002-01-0736
Pages
10
Citation
Narita, K., Uenishi, M., Taniguchi, M., Tan, I. et al., "A Hexa-Aluminate Automotive Three-Way Catalyst," SAE Technical Paper 2002-01-0736, 2002, https://doi.org/10.4271/2002-01-0736.
Additional Details
Publisher
Published
Mar 4, 2002
Product Code
2002-01-0736
Content Type
Technical Paper
Language
English