METHOD AND APPARATUS FOR SELECTIVELY REMOVING OXYGEN USING A NON-CATALYTIC ELECTRODE IN AN ELECTROCHEMICAL CELL,申请号WO2001US48704-传众专利搜索

METHOD AND APPARATUS FOR SELECTIVELY REMOVING OXYGEN USING A NON-CATALYTIC ELECTRODE IN AN ELECTROCHEMICAL CELL

申请公布号：WO0247798(A2)

申请号：WO2001US48704

申请日期：2001.12.13

申请公布日期：2002.06.20

申请人：

BATTELLE MEMORIAL INSTITUTE

发明人：MARINA, OLGA, A.;HABEGER, CRAIG, F.

分类号：B01D53/32;H01M8/06;H01M8/12

主分类号：B01D53/32

摘要：A method and apparatus for selectively removing oxygen from a gas stream containg NOx and oxygen by contracting the gas stream with an electrochemical cell made from an electrode consisting of La1-xMxFeO3, (where M is selected from the group consisting of Sr, Ba, Ca, and combinations thereof, and X is between 0.05 and 0.5). a solid oxide electrolyte and a counter electrode, wherein the La1-x MxFeO3 electrode is on one side of a solid oxide elctrolyte, and a counter electrode is on the opposite side of the solid oxide electrolyte, and applying a voltage to the electrochemical cell. The apparatus is preferably employed in a two chambered NOx sensor utilizing solid electrolyte electrochemical cells, wherein an electrochemical cell capable of catalying oyxygen reduction without catalyzing NOx decomposition is formed as integral to the first chamber.