Catalyst assembly
AssigneesDenso Corporation, Koichi Niihara, Tadachika Nakayama
InventorsKoichi Niihara, Tadachika Nakayama, Jun Hasegawa, Miho Ito
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Abstract
A catalyst assembly comprising a substrate, nanofilaments which have a nanometer-size diameter and are formed on the substrate, and particles which have a nanometer-size diameter, at least one of the nanofilaments and the particles having a catalytic function, is provided to use a catalyst more efficiently and to provide a catalytic function more efficiently. Interstices between the nanofilaments serve as distribution channels of a reactive gas, and the reactive gas spreads sufficiently not only around the ends of nanofilaments but also inside a catalyst assembly. A combination of nanofilaments and particles enables dispersion of a catalyst at a distance of not more than about 100 nanometers.
Claims17
An automobile exhaust gas purifying device comprising a catalyst assembly comprising a substrate, nanofilaments which have a nanometer-size diameter and are formed on the substrate, and particles which have a nanometer-size diameter of not more than approximately 100 nanometers, at least one of the nanofilaments and the particles having a catalytic function;
- wherein
- the nanofilaments extend from a surface of the substrate;
- and
- the particles are supported on the nanofilament.
Dependencies are inferred from the claim text.