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Washcoats and coated substrates for catalytic converters and methods of making and using same

  • US 9,586,179 B2
  • Filed: 07/24/2014
  • Issued: 03/07/2017
  • Est. Priority Date: 07/25/2013
  • Status: Active Grant
First Claim
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1. A coated substrate comprising:

  • a substrate; and

    , coated on said substrate;

    a washcoat layer comprising iron-exchanged zeolite particles, anda washcoat layer comprising catalytically active Nano-on-Nano-on-micro (NNm) particles, the catalytically active Nano-on-Nano-on-micro (NNm) particles comprising composite nanoparticles bonded to micron-sized carrier particles, and the composite nanoparticles comprising a support nanoparticle and a catalytic nanoparticle.

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