Multi-scale Theoretical Study of Sintering Dynamics of Pt for Automotive Catalyst

Ai Suzuki - Tohoku University ,
Ryo Sato - Tohoku University ,
Katsuyoshi Nakamura - Tohoku University ,
Kotaro Okushi - Tohoku University ,
Hideyuki Tsuboi - Tohoku University ,
Nozomu Hatakeyama - Tohoku University ,
Akira Endou - Tohoku University ,
Hiromitsu Takaba - Tohoku University ,
Momoji Kubo - Tohoku University ,
Mark C. Williams - Tohoku University ,
Akira Miyamoto - Tohoku University

Journal Article

2009-01-2821

ISSN: 1946-3952, e-ISSN: 1946-3960

DOI: https://doi.org/10.4271/2009-01-2821

Published November 02, 2009 by SAE International in United States

Multi-scale Theoretical Study of Sintering Dynamics of Pt for Automotive Catalyst

Sector:

Topic:

Event: SAE 2009 Powertrains Fuels and Lubricants Meeting

Citation: Suzuki, A., Sato, R., Nakamura, K., Okushi, K. et al., "Multi-scale Theoretical Study of Sintering Dynamics of Pt for Automotive Catalyst," SAE Int. J. Fuels Lubr. 2(2):337-345, 2010, https://doi.org/10.4271/2009-01-2821.

Language: English

Abstract:

The capability of theoretical durability studies to offer an efficient alternative methodology for predicting the potential performance of catalysts has improved in recent years. In this regard, multi-scale theoretical methods for predicting sintering behavior of Pt on various catalyst supports are being developed. Various types of Pt diffusions depending on support were confirmed by the micro-scale ultra accelerated quantum chemical molecular dynamics (UA-QCMD) method. Moreover, macro-scale sintering behavior of Pt/ɣ-Al₂O₃, Pt/ZrO₂ and Pt/CeO₂ catalyst were studied using a developed 3D sintering simulator. Experimental results were well reproduced. While Pt on ɣ-Al₂O₃ sintered significantly, Pt on ZrO₂ sintered slightly and Pt on CeO₂ demonstrated the highest stability against sintering.

Technical Paper	Development of Sintered Metallic Cam Follower for Excessively High Load Application
Technical Paper	Metal Supported Automotive Catalysts for Use in Europe
Technical Paper	Innovative Materials for Diesel Oxidation Catalysts, with High Durability and Early Light-Off

Citation
	(MAC / WIN)
	(MAC / WIN)
	(MAC / WIN)
	(MAC / WIN)

File Format:	Number of Results:
Select Fields to Export
Item Number	Content Type
Title	Author(s)
Affiliation(s)	Publisher
Publish Date	Abstract/scope
Citation	DOI

Multi-scale Theoretical Study of Sintering Dynamics of Pt for Automotive Catalyst

Abstract:

Recommended Content