▎ 摘　　要

NOVELTY - Diesel engine catalytic particle catcher coated with cerium-zirconium-potassium complex/reduced graphene oxide (CeZrK/rGO) nano solid solution catalyst comprises a filter housing (2) and a filter element (21), where the filter element includes a substrate and a catalyst, the active component of the catalyst includes cerium-zirconium-potassium complex/reduced graphene oxide (CeZrK/rGO) nano solid solution, and the nano solid solution catalyst having general formula (I). USE - Used as diesel engine catalytic particle catcher coated with cerium-zirconium-potassium complex/reduced graphene oxide nano solid solution catalyst. ADVANTAGE - The nano solid solution catalyst: is economical; and has large specific surface area, high oxygen content, low reaction temperature, good thermal stability, reproducibility and strong soot filtering effect. DETAILED DESCRIPTION - Diesel engine catalytic particle catcher coated with cerium-zirconium-potassium complex/reduced graphene oxide (CeZrK/rGO) nano solid solution catalyst comprises a filter housing (2) and a filter element (21), where the filter element (21) includes a substrate and a catalyst, the active component of the catalyst includes cerium-zirconium-potassium complex/reduced graphene oxide nano solid solution, the nano solid solution catalyst having general formula CeAZrBKC/rGO, A:B:C = 5:1-3:1-3.