2006-01-0413: Sintering Mechanism of Platinum Supported on Ceria-Based Oxide for Automotive Catalysts - Technical Paper

Event: SAE 2006 World Congress & Exhibition

Authors

Nobuyuki Takagi

TOYOTA Motor Corporation

TOYOTA Motor Corporation

Takeshi Hirabayashi

TOYOTA Motor Corporation

Shin'ichi Matsumoto

TOYOTA Motor Corporation

Kazuhiko Dohmae

TOYOTA Central R&D Labs., Inc

TOYOTA Central R&D Labs., Inc

Hirofumi Shinjoh

TOYOTA Central R&D Labs., Inc

Abstract

Content: 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.

Meta Tags

Topics: Particulate matter (PM)
Three-way catalysts
Catalysts
Powder metallurgy
Metals

Affiliated or Co-Author: TOYOTA Motor Corporation
TOYOTA Central R&D Labs., Inc

Details

DOI: https://doi.org/10.4271/2006-01-0413

Pages: 6

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.

Additional Details

Publisher: SAE International

Published: Apr 3, 2006

Product Code: 2006-01-0413

Content Type: Technical Paper

Language: English