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Title: Electrodes for solid state gas sensor

Abstract

A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and fixed within the electrolyte as the electrolyte is compressed and sintered. The electrochemical sensor is formed by placing a wire reference electrode and a wire sensing electrode in a die, where each electrode has a first compressed planar section and a second section depending from the first section with the second section of each electrode extending axially within the die. The die is filled with an oxide-electrolyte powder and the powder is pressed within the die with the wire electrodes. The wire-electrodes and the pressed oxide-electrolyte powder are sintered to form a ceramic electrolyte base with a reference wire electrode and a sensing wire electrode depending therefrom.

Inventors:
 [1];  [2];  [1]
  1. Santa Fe, NM
  2. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1007475
Patent Number(s):
6605202
Application Number:
10/175,252
Assignee:
The Regents of the University of California (Los Alamos, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Mukundan, Rangachary, Brosha, Eric L, and Garzon, Fernando. Electrodes for solid state gas sensor. United States: N. p., 2003. Web.
Mukundan, Rangachary, Brosha, Eric L, & Garzon, Fernando. Electrodes for solid state gas sensor. United States.
Mukundan, Rangachary, Brosha, Eric L, and Garzon, Fernando. Tue . "Electrodes for solid state gas sensor". United States. https://www.osti.gov/servlets/purl/1007475.
@article{osti_1007475,
title = {Electrodes for solid state gas sensor},
author = {Mukundan, Rangachary and Brosha, Eric L and Garzon, Fernando},
abstractNote = {A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and fixed within the electrolyte as the electrolyte is compressed and sintered. The electrochemical sensor is formed by placing a wire reference electrode and a wire sensing electrode in a die, where each electrode has a first compressed planar section and a second section depending from the first section with the second section of each electrode extending axially within the die. The die is filled with an oxide-electrolyte powder and the powder is pressed within the die with the wire electrodes. The wire-electrodes and the pressed oxide-electrolyte powder are sintered to form a ceramic electrolyte base with a reference wire electrode and a sensing wire electrode depending therefrom.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {8}
}

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Works referenced in this record:

High-Temperature Hydrocarbon Sensors Based on a Stabilized Zirconia Electrolyte and Metal Oxide Electrodes
journal, January 1999


Highly selective CO sensor using stabilized zirconia and a couple of oxide electrodes
journal, April 1998


Mixed Potential Type NO[sub x] Sensor Based on Stabilized Zirconia and Oxide Electrode
journal, January 1996


Mixed-potential-type propylene sensor based on stabilized zirconia and oxide electrode
journal, February 2000


High-Temperature Carbon Monoxide Potentiometric Sensor
journal, January 1993


Ceria-Electrolyte-Based Mixed Potential Sensors for the Detection of Hydrocarbons and Carbon Monoxide
journal, January 1999