Perovskite catalysts with active phase composed of LaMnO3 or La0.75Ag0.25MnO3 doped with noble metals — platinum or palladium — were tested for activity in oxidation of toluene. Their impregnation with solution of Pt or Pd compounds increased the catalytic activity. LaMnO3 with Pt content displayed the highest activity. LaMnO3 perovskite doped with both noble metals show higher activity than when noble metals were added to La0.75Ag0.25MnO3 perovskite.
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