Low temperature solid electrolyte oxygen sensor
AssigneeCommonwealth Scientific and Industrial Research Organization
InventorsSukhvinder P. S. Badwal, Michael J. Bannister
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Abstract
An electrode for a solid electrolyte oxygen sensor, characterized in that the electrode comprises a surface layer on the solid electrolyte, said surface layer consisting of or containing a solid solution in urania of one or more other metal oxides with oxygen/metal atom ratio equal to or less than two, provided that at least one of said other metal oxides has an oxygen/metal atom ratio less than two.
Claims5
An oxygen sensor comprising an oxygen ion-conducting solid electrolyte member and at least one electrode comprising a surface layer on the solid electrolyte, wherein said surface layer contains:
- (1) at least one noble metal selected from the group consisting of platinum, gold, palladium, silver and alloys of any two or more of these elements, and (2) a solid solution in uranium oxide of one or more other metal oxides with an oxygen/metal atom ratio equal to or less than two, provided that at least one of said other metal oxides has an oxygen/metal atom ratio less than two.
Dependencies are inferred from the claim text.