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US 2023/0076536 A1Published application
Exhaust gas purification catalyst device
AssigneeCataler Corporation
InventorsTsubasa NANJO, Yuya KAWANO, Takuto ARAKAWA, Yoshinori YAMASHITA, Shunsuke OHISHI, Ryosuke TAKASU
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Abstract
An exhaust gas purification catalyst device including a substrate and an SCR catalyst layer on the substrate, the substrate containing catalyst precious metal particles directly supported on the substrate, the catalyst precious metal particles containing Pt, and the catalyst precious metal particles having an average particle diameter of 30 to 120 nm inclusive.
Claims17
An exhaust gas purification catalytic device, comprising a substrate and an SCR catalyst layer on the substrate, wherein
- the substrate comprises catalytic noble metal particles supported directly on the substrate,
- the catalytic noble metal particles comprise Pt, and
- the catalytic noble metal particles have an average particle size of 30 nm or more and 120 nm or less.
Dependencies are inferred from the claim text.