Oxidation catalyst for treating a diesel engine exhaust, exhaust system, vehicle, method of producing an oxidation catalyst, and use of an oxidation catalyst

摘要

1/1 summary “Oxidation catalyst for treating an exhaust gas of a diesel engine, exhaust system, vehicle, production method of an oxidation catalyst, and, Use of an Oxidation Catalyst â € “An oxidation catalyst is described for treating an exhaust gas of a diesel engine, said oxidation catalyst comprises: a substrate; a first reactive coating region (1) disposed on the substrate, wherein the first reactive coating region (1) comprises a first platinum group metal (pgm) and a first support material; a second reactive coating region (2) adjacent to the first reactive coating region (1), wherein the second reactive coating region (2) comprises a second platinum group metal (pgm) and a second support material; a third reactive coating region (3) disposed on the substrate, wherein the third reactive coating region (3) comprises a third platinum group (pgm) metal and a third support material; and wherein both: (i) the third reactive coating region (3) is adjacent to the second reactive coating region (2); (ii) the second reactive coating region (2) is arranged or supported in the third reactive coating region (3). Uses and methods involving the oxidation catalyst are also described.