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Title: Compact electrochemical bifunctional NOx/O2 sensors with internal reference for high temperature applications

Abstract

A bifunctional total NOx and O2 sensor assembly with an internal reference for high temperature sensing. Two electrochemical total NOx(NO+NO2) measuring systems and method were coupled with a metal/metal oxide internal oxygen reference to detect O2 and NOx simultaneously in a combustion environment using a single sensor. A Pd/PdO-containing reference chamber was sealed within a stabilized zirconia superstructure by a high pressure/temperature bonding method. An amperometric and potentiometric NOx sensor assembly was built on the outside of the Pd/PdO chamber. Pt-loaded zeolite Y was used to obtain total NOx capacity and also to cover the Pt electrodes for detecting oxygen in the presence of NOx.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531694
Patent Number(s):
8012323
Application Number:
12/402,216
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC02-06CH11357; FC26-03NT41615; PS26-02NT41422; W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2009-03-11
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Singh, Dileep, Routbort, Jules, Dutta, Prabir, Spirig, John V., and Yang, Jiun Chan. Compact electrochemical bifunctional NOx/O2 sensors with internal reference for high temperature applications. United States: N. p., 2011. Web.
Singh, Dileep, Routbort, Jules, Dutta, Prabir, Spirig, John V., & Yang, Jiun Chan. Compact electrochemical bifunctional NOx/O2 sensors with internal reference for high temperature applications. United States.
Singh, Dileep, Routbort, Jules, Dutta, Prabir, Spirig, John V., and Yang, Jiun Chan. Tue . "Compact electrochemical bifunctional NOx/O2 sensors with internal reference for high temperature applications". United States. https://www.osti.gov/servlets/purl/1531694.
@article{osti_1531694,
title = {Compact electrochemical bifunctional NOx/O2 sensors with internal reference for high temperature applications},
author = {Singh, Dileep and Routbort, Jules and Dutta, Prabir and Spirig, John V. and Yang, Jiun Chan},
abstractNote = {A bifunctional total NOx and O2 sensor assembly with an internal reference for high temperature sensing. Two electrochemical total NOx(NO+NO2) measuring systems and method were coupled with a metal/metal oxide internal oxygen reference to detect O2 and NOx simultaneously in a combustion environment using a single sensor. A Pd/PdO-containing reference chamber was sealed within a stabilized zirconia superstructure by a high pressure/temperature bonding method. An amperometric and potentiometric NOx sensor assembly was built on the outside of the Pd/PdO chamber. Pt-loaded zeolite Y was used to obtain total NOx capacity and also to cover the Pt electrodes for detecting oxygen in the presence of NOx.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {9}
}

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