Toyota Jidosha Kabushiki Kaisha

Japan Fine Ceramics Center

Taro Ueda

Keiichiro Aoki

Toyoharu Kaneko

Seiji Takahashi

Tatsuhiro Hashida

Masaya Suzuki

Hajime Okawa

Takafumi Ogawa

The present teaching rekates to providing a NOx decomposition agent having an excellent NOx decomposition rate. The NOx decomposition agent containing a perovskite oxide represented by ABx-1MxO, wherein A represents one or more elements selected from the group consisting of La, Sr, Mg, Ca and Ba, B represents Mn, M represents a combination of one or more first metal elements selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Cr, Mo, W and Ce, and one or two second metal elements selected from the group consisting of Ca and Mg, and x represents a number greater than or equal to 0 and less than 1.

Nitrogen oxide decomposition material and use thereof

The present specification provides a NOx responsive element suitable for directly sensing NOx. The NOx responsive element an oxygen ion conductive layer has a first electrode layer having a nitrogen oxide decomposition catalyst phase composed of perovskite-type oxide, being in contact with the oxygen ion conductive layer, and being exposed to NOx, and a second electrode layer opposing the first electrode layer across the oxygen ion conductive layer. The nitrogen oxide decomposition catalyst phase has a nitrogen oxide adsorption stabilizing surface on its surface exposed to nitrogen oxide.

Nitrogen oxide responsive element and method for producing same

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Nishisonogi-gun, Japan

Taro Ueda