Birch, Stewart, Kolasch & Birch, LLP
Exhaust gas emission purifying catalyst
An exhaust gas emission purifying catalyst has a catalyst layer (20) supported on a carrier (10). The catalyst layer includes a composite oxide, in which noble metals and occluding agents are mixed in order to inhibit the movement of the occluding agents even at high temperatures and to prevent deterioration of the purifying performance of the catalyst after operation at a high temperature. The composite oxide is comprised of silicon (Si) and at least one of cobalt (Co), zirconium (Zr), iron (Fe), and manganese (Mn).
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
B Y B B
B01D Y02T B01J B01J
inventional additional inventional inventional
Tetsuya
Watanabe