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SAE transactions | 1990

Improvement of Three-Way Catalyst Performance by Optimizing Ceria Impregnation

Kazunori Ihara; Hiroshi Murakami; Kenji Ohkubo

To improve three-way catalyst performance, optimization of impregnation method of ceria(CeO2), which is added as an oxygen storage component, was investigated. The impregnation layer of ceria separated from the layer containing precious metals (active components) was found to be most effective to increase activity among the methods studied. It seems that this new double coating improves interactions between ceria, alumina and the precious metals. The results of these tests are included in the report.


Archive | 1991

Method of manufacturing an exhaust gas purifying catalyst

Shigeru Yasaki; Yasutaka Yoshino; Kazunori Ihara; Kenji Ohkubo


Archive | 1992

Exhaust purifying catalyst for use in an internal combustion engine and method of manufacturing same

Shigeru Yasaki; Yasutaka Yoshino; Kazunori Ihara


Archive | 1994

Exhaust gas purifying catalyst for use in an internal combustion engine

Shigeru Yasaki; Yasutaka Yoshino; Kazunori Ihara


Archive | 1989

Catalyst for exhaust gas purification and method for producing the catalyst

Kazunori Ihara; Hiroshi Murakami


Archive | 1988

Catalyst and method of making the catalyst

Kazunori Ihara; Hiromi Ohishi; Shoko Yatagai


Archive | 1990

Abgasreinigungs-Katalysator zur Verwendung bei Verbrennungsmotoren und Verfahren zu seiner Herstellung

Shigeru Yasaki; Yasutaka Yoshino; Kazunori Ihara


International Pacific Conference on Automotive Engineering, 4th, 1987, Melbourne, Australia | 1987

Thermal effect on three way catalyst deactivation and improvement

Kazunori Ihara; Kenji Ohkubo; Yoshinori Niura


Archive | 1990

Automobile exhaust gas cleaning catalyst - having palladium-rich region in catalyst layer near gas inlet end

Shigeru Yasaki; Yasutaka Yoshino; Kazunori Ihara


Archive | 1993

Construction of a catalytic exhaust-gas purification plant

Isao Fukui; Shinichi Kuroda; Masahiro Hiraishi; Koji Inoue; Masamitsu Takahashi; Kazunori Ihara; Hiroshi Murakami; Tetsuhiro Tanaka; Shinobu Miyaura

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