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Systems and Methods for Zero-PGM Binary Catalyst Having Cu, Mn, and Fe for TWC Applications

  • US 20150105243A1
  • Filed: 10/31/2014
  • Published: 04/16/2015
  • Est. Priority Date: 03/22/2013
  • Status: Active Grant
First Claim
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1. A catalytic system, comprising:

  • a substrate;

    a washcoat applied to said substrate; and

    an overcoat applied to said washcoat comprising at least one support oxide and at least two catalysts applied to the at least one support oxide;

    wherein the at least two catalysts have the general formula AXB3-XO4, wherein X may be less than or equal to 1.5 and wherein A and B are selected from the group consisting of Cu, Mn, and Fe; and

    wherein the at least two catalysts are substantially free of platinum group metals.

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