Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Ibiden Company Limited

Cataler Corporation

Tomoaki Sunada

Takeru Yoshida

Yuki Aoki

Masaru Kakinohana

Shingo Sakagami

Shinnosuke Goto

Masaaki Kawai

Hideaki Ueno

Suguru Imamura

Koichi Uemura

Masahiro Nakahara

Singo Sakagami

The present disclosure provides a monolith substrate used for an exhaust gas purifying catalyst that improves purification performance, a method for producing such monolith substrate, and an exhaust gas purifying catalyst comprising such monolith substrate. The present disclosure relates to a monolith substrate comprising an alumina-ceria-zirconia composite oxide and alumina, a method for producing such monolith substrate, and an exhaust gas purifying catalyst comprising such monolith substrate.

Monolith substrate, method for producing monolith substrate, and exhaust gas purification catalyst comprising monolith substrate

A catalyst for purifying exhaust gases includes a substrate, and a catalytic layer. The catalytic layer includes a lower catalytic layer, a first upper catalytic layer, and a second upper catalytic layer. The lower catalytic layer being loaded with Pd and/or Pt is formed on the substrate. The first upper catalytic layer being loaded with Pd covers an upstream side of the lower catalytic layer, and exhibits a concentration of loaded Pd that falls in a range of from 4.5 to 12% by mass when the entirety of the first upper catalytic layer is taken as 100% by mass. The second upper catalytic layer being loaded with Rh covers a downstream side of the lower catalytic layer.

Catalyst for converting exhaust gases

Growing community of inventors

Toyota, Japan

Tomoaki Sunada