Process for producing improved solid electrolyte oxygen gas sensors

Abstract From the Canadian patent

An oxygen gas sensor having a solid electrolyte oxygen gas sensor element, with an inner conductive catalyst electrode on the interior surface and an outer conductive catalyst electrode on the exterior surface thereof which has, a high voltage output and lower internal resistance is produced by chemically activating said inner conductive catalyst electrode with an inorganic acid or and acid salt By also sub-, jecting said outer conductive catalyst electrode to a direct current activation under a reducing atmosphere even more, improved properties, such as fast switching response are, achieved.