Mazda Motor Corporation

Shoko Yatagai

Hiroshi Murakami

Kazunori Ihara

Masayuki Koishi

Kazuko Yamagata

Hiromi Ohishi

A catalyst for purifying exhaust gas, comprising a catalyst carrier, a first coating layer formed on a surface of the catalyst carrier and mainly consisting of active alumina oxide containing platinum and rhodium and a second coating layer formed on a surface of the first coating layer and mainly consisting of palladium and composite powder including zirconium oxide and lanthanum oxide fixed on a surface of cerium oxide, and a method of manufacturing the catalyst.

Catalyst for purifying exhaust gas and method of manufacturing the same

A method of making a catalyst for cleaning exhaust gas from an engine including steps of preparing corrugated metallic panels and plane metallic panels, laminating the plane metallic panels with the corrugated metallic panels alternatively side by side to form a honeycomb structure of a metallic carrier, forming at least two layers of a base coat portion and an over coat portion of alumina based coating on the metallic carrier sequentially, and impregnating catalytic components into at least the outermost layer of the alumina based coating.

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Hiroshima, Japan

Shoko Yatagai