Catalytic material, production method therefor, and diesel particulate filter
AssigneeMazda Motor Corporation
InventorsHiroki Fujita, Koichiro Harada, Kenji Okamoto, Yoshinori Tsushio, Akihide Takami, Kenji Suzuki
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Abstract
Disclosed is a catalytic material for removing diesel particulates, which comprises a composite oxide which contains zirconium as a primary component and a rare-earth metal except for cerium and yttrium. The composite oxide has a crystallite diameter of 13 nm to 40 nm.
Claims9
A catalytic material for removing diesel particulates, comprising a composite oxide which contains zirconium as a primary component and a rare-earth metal except for cerium and yttrium, said composite oxide having a crystallite diameter of 13 nm to 40 nm.
A diesel particulate filter adapted to be disposed in an exhaust passage of a diesel engine, comprising a catalytic layer formed to define a contact surface with exhaust gas passing through said exhaust passage, said catalytic layer being made of a catalytic material including a composite oxide which contains zirconium as a primary component and a rare-earth metal except for cerium and yttrium, said composite oxide having a crystallite diameter of 13 nm to 40 nm.
Dependencies are inferred from the claim text.