Cataler Corporation

Toyota Jidosha Kabushiki Kaisha

Shu Miyasaka

Norihiko Aono

Keigo Hori

Mai Huong Tran

Eriko Tanaka

Daisuke Sugioka

Ryo Shimizu

Kenji Yamamoto

Tomohiro Takeshita

Kumiko Nomura

This exhaust gas purifying catalyst is provided with a substrate and a catalyst layer formed on a surface of the substrate. The catalyst layer contains zeolite particles that support a metal, and a rare earth element-containing compound that contains a rare earth element. The rare earth element-containing compound is added in such an amount that the molar ratio of the rare earth element relative to Si contained in the zeolite is 0.001 to 0.014 in terms of oxides.

Exhaust gas purifying catalyst

To provide an electrocatalyst for fuel cells, which is configured to ensure both the initial performance and durability of fuel cells. An electrocatalyst for fuel cells, wherein the electrocatalyst comprises a carbon support including a mesopore and a catalyst alloy supported on the carbon support, and the catalyst alloy is a catalyst alloy of platinum and a transition metal; wherein the mesopore includes at least one throat; wherein an average effective diameter of the at least one throat is 1.8 nm or more and less than 3.2 nm; and wherein a transition metal ratio of the catalyst alloy supported on a deeper-side region than the at least one throat, is lower than the transition metal ratio of the catalyst alloy supported on a nearer-side region than the at least one throat.

Electrocatalyst

This exhaust gas purifying catalyst is provided with a substrateand a catalyst layerformed on a surface of the substrate. The catalyst layercontains zeolite particlesthat support a metal, and a rare earth element-containing compoundthat contains a rare earth element. The rare earth element-containing compoundis added in such an amount that the molar ratio of the rare earth element relative to Si contained in the zeoliteis 0.001 to 0.014 in terms of oxides.

Growing community of inventors

Shizuoka, Japan

Shu Miyasaka