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Electrochemical catalytic reduction cell for the reduction of NO.sub.x in an O.sub.2 -containing exhaust emission

  • US 5,401,372 A
  • Filed: 04/26/1993
  • Issued: 03/28/1995
  • Est. Priority Date: 04/26/1993
  • Status: Expired due to Fees
First Claim
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1. An electrochemical cell for reduction of NOx comprising:

  • (a) a solid electrolyte having sides;

    (b) an anode on one side of the solid electrolyte;

    (c) two layers on the side of the solid electrolyte opposite that of the anode, one of said layers is a porous oxide catalyst, and the other layer is an electron conducting layer, said electron conducting layer made from a material selected from the group consisting of lanthanum strontium manganate, lanthanum strontium manganese cobalt oxide, lanthanum strontium cobalt oxide, lanthanum strontium cobalt ferride, platinum and mixtures thereof; and

    (d) a circuit that applies a potential across said anode and either said porous oxide catalyst or said electron conducting layer.

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