Mitsubishi Denki Kabushiki Kaisha

Minoru Satou

Ryoji Nishiyama

Kenro Mitsuda

Hideaki Katashiba

Yuji Kishimoto

Hirofumi Oouchi

Hiroaki Sigeoka

A catalyst for internal combustion engine exhaust purification without frequently switching to a rich burn mode. The catalyst includes a catalyst A containing an NOabsorbing substance and an NOreducing catalyst, a catalyst B containing a hydrogen adsorption substance and a hydrogen oxidizing catalyst, an electron conductive substance C, and an ion conductive substance D. Electrons move between the catalyst A and the catalyst B through the electron conductive substance C, ions move through the ion conductive substance D, and an electrochemical reducing reaction and an electrochemical oxidizing reaction respectively occur on the catalyst A and on the catalyst B. Therefore, it is possible to quickly reduce the adsorbed NOusing the adsorbed hydrogen without depending on the atmosphere.

Growing community of inventors

Tokyo, Japan

Minoru Satou