Catalyst particles and method of manufacturing the same
AssigneesDenso Corporation, Koichi Niihara, Tadachika Nakayama
InventorsMiho Ito, Jun Hasegawa, Koichi Niihara, Tadachika Nakayama
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Abstract
Catalyst particles having a higher activity and capable of showing activities for a plurality of kinds of material are provided. The catalyst particles of the invention comprise base particles that consist of one kind of single material fine particles or two or more kinds of solid solution fine particles having primary particle diameters of a nanometer order, and a surface coating layer made of one or more kind of noble metal, or an oxide of noble metal, that covers at least a part of the surface of the base particles 1 to a thickness of one to thirty single atom layers.
Claims17
Catalyst particles comprising:
- base particles that consist of one kind of single material fine particles or a solid solution fine particles composed of two or more kinds of the single material having a primary particle size of 100 nm or less;
- and
- one or more kind of metal or a derivative thereof that covers at least a part of the surface of said base;
- wherein
- the one or more kind of metal or a derivative thereof that covers at least part of the surface of said base particles consists of ultra-fine particles having a size of less than 50 nm.
Dependencies are inferred from the claim text.