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US 2006/0213772 A1Published application
Sensing element and method of making
OwnerKailash Jain, Carlos Valdes +5inventors
InventorsKailash Jain, Carlos Valdes, Da Wang, David Wallace, Paul Kikuchi, Raymond Bloink, Walter Symons
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Abstract
A gas sensing element and method of making are provided. The gas sensing element can comprise calcined inorganic oxides that sequester contaminants in an exhaust stream. The calcined inorganic oxides provide sensors with improved performance, thereby eliminating post-sinter chemical and/or electrical conditioning.
Claims21
A sensing element comprising:
- an electrochemical cell;
- wherein the sensing element comprises a calcined inorganic oxide selected from an alkali metal oxide;
- a trivalent metal oxide;
- a multivalent metal oxide;
- and combinations comprising at least one of the foregoing.
2 more elements
A method of forming a sensing element, comprising:
- forming a calcined inorganic oxide precursor;
- applying the precursor to the sensing element;
- and
- heating the sensing element;
- wherein the inorganic oxide is selected from the group consisting of an alkali metal oxide;
- a trivalent metal oxide;
- a multivalent metal oxide;
- and combinations comprising at least one of the foregoing.
5 more elements
A sensing element precursor comprising an inorganic oxide selected from the group consisting of an alkali metal oxide;
- a trivalent metal oxide;
- a multivalent metal oxide;
- and combinations comprising at least one of the foregoing.
Dependencies are inferred from the claim text.