MOUNT

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A particulate filter (1) comprising a porous ceramic filter substrate and a catalytic phase, such that the catalytic phase comprises an oxide of rare earth (s) (s) and an oxide of perovskite structure formulation La1-x-z [...] C O3 or Ax C1-y La1-x By O3 or La1-x-z C1-y [...] By O3, with-A selected from alkali metals, alkaline earth and transition, -C selected from Mn, Fe, The, cu and Mo, or any combination between these elements, -B being Ag.