Electrode structure of an oxygen sensing element

Details Electrode structure of an oxygen sensing element Electrode structure of an oxygen sensing element

1988-04-20

1989-09-05

Kaplan, G. L.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204426, 204429, G01N 2758

Patent

active

048635839

ABSTRACT:
An electrode formed on an oxygen-ion conductive solid electrolyte body of an oxygen sensing element such that the electrode is exposed to a measurement fluid to be measured, for detecting a concentration of oxygen in the fluid. The electrode is formed of a porous cermet layer which has a thickness of at least 3 microns. The porous cermet layer includes as major components thereof an oxygen-ion conductive solid electrolyte, and at least two platinum-group metals which are selected from the platinum group and which includes platinum and rhodium. A content of said rhodium and a total content of the above at least two platinum-group metals are determined so as to satisfy the following formulas: R/M=0.2 to 0.8, and M/(SE+M)=0.3 to 0.8, where, R=volume % of rhodium included in the cermet layer, M=total volume % of the at least two platinum-group metals, and SE=volume % of the oxygen-ion conductive solid electrolyte included in the cermet layer.

REFERENCES:
patent: 3645875 (1972-02-01), Record et al.
patent: 4199425 (1980-04-01), Sinkevitch
patent: 4655892 (1987-04-01), Satta et al.

Affiliated with

Also associated with

Rating

Electrode structure of an oxygen sensing element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrode structure of an oxygen sensing element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrode structure of an oxygen sensing element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-241437