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Method for forming a potential hydrocarbon sensor with low sensitivity to methane and CO

United States Patent

6,656,336
December 2, 2003
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
Solid State Gas Sensors
Hydrocarbon/Total Combustibles Sensor
A hydrocarbon sensor is formed with an electrolyte body having a first electrolyte surface with a reference electrode depending therefrom and a metal oxide electrode body contained within the electrolyte body and having a first electrode surface coplanar with the first electrolyte surface. The sensor was formed by forming a sintered metal-oxide electrode body and placing the metal-oxide electrode body within an electrolyte powder. The electrolyte powder with the metal-oxide electrode body was pressed to form a pressed electrolyte body containing the metal-oxide electrode body. The electrolyte was removed from an electrolyte surface above the metal-oxide electrode body to expose a metal-oxide electrode surface that is coplanar with the electrolyte surface. The electrolyte body and the metal-oxide electrode body were then sintered to form the hydrocarbon sensor.
Mukundan; Rangachary (Santa Fe, NM), Brosha; Eric L. (Los Alamos, NM), Garzon; Fernando (Santa Fe, NM)
The Regents of the University of California (Los Alamos, NM)
10/ 158,997
20020185376
May 30, 2002
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The government has certain rights in the invention.