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Title: Solid state oxygen sensor

Abstract

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.

Inventors:
 [1];  [2]
+ Show Inventor Affiliations
  1. Santa Fe, NM
  2. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
OSTI Identifier:
871266
Patent Number(s):
5695624
Assignee:
Regents of Univeristy of California (Alameda, CA)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solid; oxygen; sensor; potentiometric; formed; logarithmic; response; differential; concentration; operating; nernstian-type; films; mixed; conducting; oxide; materials; form; electrode; services; permitting; diffusional; access; interface; zirconia; electrolyte; diffusion; rate-limiting; metal; electrodes; morphological; changes; structure; occur; extended; operation; elevated; temperatures; mixed oxide; mixed conducting; oxide materials; oxygen sensor; conducting oxide; oxygen concentration; metal electrode; electrode structure; elevated temperatures; elevated temperature; oxide material; zirconia electrolyte; metal electrodes; form electrode; /204/

Citation Formats

Garzon, Fernando H, and Brosha, Eric L. Solid state oxygen sensor. United States: N. p., 1997. Web.
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Garzon, Fernando H, & Brosha, Eric L. Solid state oxygen sensor. United States.
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Garzon, Fernando H, and Brosha, Eric L. Wed . "Solid state oxygen sensor". United States. https://www.osti.gov/servlets/purl/871266.
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@article{osti_871266,
title = {Solid state oxygen sensor},
author = {Garzon, Fernando H and Brosha, Eric L},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
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