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Variations of Loading of Zero-PGM Oxidation Catalyst on Metallic Substrate

  • US 20150018202A1
  • Filed: 07/12/2013
  • Published: 01/15/2015
  • Est. Priority Date: 07/12/2013
  • Status: Abandoned Application
First Claim
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1. A method for improving performance of catalytic systems, comprising:

  • providing at least one substrate;

    depositing a washcoat suitable for deposition on the substrate, the washcoat comprising at least one oxide solid further comprising at least one carrier metal oxide and at least one first ZPGM catalyst;

    depositing an overcoat suitable for deposition on the substrate, the overcoat comprising at least one second ZPGM catalyst;

    wherein the washcoat is deposited at about 60 g/L to about 120 g/L;

    wherein the overcoat is deposited at about 120 g/L; and

    wherein the substrate exhibits a back pressure of about 0.400 kPa to about 0.750 kPa when receiving an air flow of about 1.0 m3/min.

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