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Exhaust gas purifying catalyst

  • US 6,537,946 B1
  • Filed: 08/21/2000
  • Issued: 03/25/2003
  • Est. Priority Date: 08/20/1999
  • Status: Expired due to Term
First Claim
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1. An exhaust gas purifying catalyst, comprising:

  • a porous carrier;

    an inhibition layer on said porous carrier, said inhibition layer including an inhibiting agent; and

    a catalyst layer on said inhibition layer, said catalyst layer including an absorbing agent comprising potassium as one of alkali metal elements, wherein the inhibiting agent in said inhibition layer inhibits movement of said absorbing agent in said catalyst layer into said porous carrier.

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