METHOD FOR PRODUCING A SENSOR ELEMENT

A sensor element for gas sensors is described for determining gas components of a gas mixture, especially in exhaust gases of internal combustion engines, having at least one electrochemical measuring cell and at least one porous layer that is exposed to the gas mixture. The porous layer contains pa...

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Bibliographische Detailangaben
Hauptverfasser:	OPP, ANDREAS, RENGER, CHRISTOPH, SCHUMANN, BERND, BUSE, FRANK, KRUSE, MATTHIAS, BRAUN, HARRY, CRAMER, BERNDT, EISELE, ULRICH, JOCKEL, JOERG, HEIMANN, DETLEF, WAHL, THOMAS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS TESTING THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A sensor element for gas sensors is described for determining gas components of a gas mixture, especially in exhaust gases of internal combustion engines, having at least one electrochemical measuring cell and at least one porous layer that is exposed to the gas mixture. The porous layer contains palladium, platinum, ruthenium, an alkali metal and/or an alkaline earth metal, the platinum being contained in the porous layer at a minimum concentration of 1.5 wt. %. Furthermore, a method and an impregnating solution are described for producing the sensor element.