Solid state oxygen sensor

Patent · 01 January 1997

OSTI ID:871266

Garzon, Fernando H ^[1]; Brosha, Eric L ^[2]

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1. Santa Fe, NM
2. Los Alamos, NM

A potentiometric oxygen sensor is formed having a logarithmic response to a differential oxygen concentration while operating as a Nernstian-type sensor. Very thin films of mixed conducting oxide materials form electrode services while permitting diffusional oxygen access to the interface between the zirconia electrolyte and the electrode. Diffusion of oxygen through the mixed oxide is not rate-limiting. Metal electrodes are not used so that morphological changes in the electrode structure do not occur during extended operation at elevated temperatures.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: Regents of Univeristy of California (Alameda, CA)
• Patent Number(s): US 5695624
• OSTI ID: 871266
• Country of Publication: United States
• Language: English

Related Subjects

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elevated
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elevated temperatures
extended
films
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mixed
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morphological
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permitting
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