Structured catalyst for oxidation for exhaust gas purification, method for producing same, automobile exhaust gas treatment device, catalytic molding, and gas purification method

A structured catalyst for oxidation for exhaust gas purification, comprising:

• a support of a porous structure composed of a zeolite-type compound;
• and
• at least one oxidation catalyst present in the support and selected from the group consisting of metals and metal oxides, wherein
• the support has channels that communicate with each other, and
• the oxidation catalyst is present at least in the channels of the support,
• wherein the metal oxides contain at least one perovskite-type oxide,
• the channels have any one of a one-dimensional pore, a two-dimensional pore, and a three-dimensional pore defined by a framework of the zeolite-type compound and an enlarged pore portion that has a diameter different from any of the one-dimensional pore, the two-dimensional pore, and the three-dimensional pore,
• the oxidation catalyst is present at least in the enlarged pore portion, the oxidation catalyst is made of at least one type of oxidation catalytic nanoparticles selected from the group consisting of metal nanoparticles and metal oxide nanoparticles, and
• an average particle size of the oxidation catalytic nanoparticles is greater than an average inner diameter of the channels.