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Development of Double-Layered Three-Way Catalysts
Technical Paper
2009-01-1081
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
It is critical to develop high performance three-way catalysts to meet increasing regulations around the world. It was found that a double-layered catalyst loaded with Pt and Rh suppresses Pt-Rh alloying, thereby improving catalytic performance. A double-layered catalyst has the effect of decreasing OSC performance, but this has been overcome by a newly developed Rh support and suppressed Pt grain growth. The developed catalyst is capable of lowering the amount of PGM required by approximately 40%.
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Aoki, Y., Yoshida, T., Tanabe, T., Hatanaka, M. et al., "Development of Double-Layered Three-Way Catalysts," SAE Technical Paper 2009-01-1081, 2009, https://doi.org/10.4271/2009-01-1081.Also In
References
- Yoshida, T. et al. “Development of High Performance Three-Way-Catalyst,” SAE 2006-01-1061
- Murakami, Y. et al. “Catalyst Deterioration Mechanism and Prevention Measures,” 6 1995
- Dong, F. et al. “Dynamic Oxygen Mobility and a New Insight into the Role of Zr Atoms in Three-Way Catalysts of Pt/CeO 2 -ZrO 2 ,” Catalyst Today 93-95 827 832 2004
- Nagai, Y. et al. “X-ray Adsorption Fine Structure Analysis of Local Structure of CeO 2 -ZrO 2 Mixed Oxides with the Same Composition Ratio (Ce/Zr=1),” Catalyst Today 74 225 234 2002
- Nagai Y. et al. “Sintering Inhibition Mechanism of Platinum Supported on Ceria-based Oxide and Pt-oxide-support Interaction,” J. Catalyst 242 103 2006
- Hatanaka, M. et al. “Identification of Pt Sintering Control Mechanism of Pt/Ceria Catalyst (2)” Proceedings of 100th Catalyst Congress 3G27