Catalytically active particle filter with a high degree of filtration efficiency

Wall-flow filter for removing particles from the exhaust gas of combustion engines, comprising a wall-flow filter substrate of length L and coatings Z and F that differ from one another,

• wherein the wall-flow filter substrate has channels E and A, which extend in parallel between a first and a second end of the wall-flow filter substrate, are separated by porous walls and form surfaces OE and OA respectively, and wherein the channels E are closed at the second end and the channels A are closed at the first end, and
• wherein the coating Z is located in the porous walls and/or on the surfaces OA, but not on the surfaces OE, and comprises palladium and/or rhodium and a cerium/zirconium mixed oxide,
• and that the coating F is located in the porous walls and/or on the surfaces OE, but not on the surfaces OA, and comprises a particulate metal compound and no noble metal,
• characterized in that
• the wall-flow filter substrate has a coating Y which is different from the coatings Z and F, which comprises platinum, palladium or platinum and palladium, which contains no rhodium and no cerium/zirconium mixed oxide and which is located in the porous walls and/or on the surfaces OE, but not on the surfaces OA.