Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For nitrogen or nitrogen containing compound
Reexamination Certificate
2007-11-13
2007-11-13
Olsen, Kaj K. (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For nitrogen or nitrogen containing compound
C205S785000, C204S424000, C073S023310
Reexamination Certificate
active
11538252
ABSTRACT:
Disclosed herein are NOx sensors and methods of using the same. In one embodiment, a method for sensing NOx comprises: contacting a first NOx electrode with the gas, contacting a second NOx electrode with the gas, determining a NO2emf between the first NOX electrode and a first reference electrode, determining a NOx emf between the second NOx electrode and a second reference electrode, and determining a NO2concentration and a NO concentration using the NO2emf and the NOx emf. The first electrode can be at a first temperature of greater than or equal to about 700° C., and the second electrode can be at a second temperature of about 500° C. to about 650° C.
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Farhat Robert Jerome
Kupe Joachim
Symons Walter T.
Wang Da Yu
Yao Sheng
Delphi Technologies Inc.
Marshall Paul L.
Olsen Kaj K.
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