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Sintering Mechanism of Platinum Supported on Ceria-Based Oxide for Automotive Catalysts
Technical Paper
2006-01-0413
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Conventional Three-way catalysts consist of precious metals and metal oxide supports. The sintering of precious metals is known to cause a decrease in the catalytic activity. Recently, we discovered that Pt/Ce-based oxide catalysts have high durability compared to Pt/Al2O3 following aging treatment. Using X-ray absorption analysis, we found that the Pt-O-Ce bond, that is, the Pt-support interaction, inhibits the sintering of Pt particles.
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Authors
- Nobuyuki Takagi - TOYOTA Motor Corporation
- Takashi Minami - TOYOTA Motor Corporation
- Takeshi Hirabayashi - TOYOTA Motor Corporation
- Shin'ichi Matsumoto - TOYOTA Motor Corporation
- Kazuhiko Dohmae - TOYOTA Central R&D Labs., Inc
- Yasutaka Nagai - TOYOTA Central R&D Labs., Inc
- Hirofumi Shinjoh - TOYOTA Central R&D Labs., Inc
Citation
Takagi, N., Minami, T., Hirabayashi, T., Matsumoto, S. et al., "Sintering Mechanism of Platinum Supported on Ceria-Based Oxide for Automotive Catalysts," SAE Technical Paper 2006-01-0413, 2006, https://doi.org/10.4271/2006-01-0413.Also In
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