Licensable Technologies : Materials : Nanotechnology

Solid State Oxygen Sensor (I)

Abstract
Solid state oxygen sensors are provided with a yttria-doped zirconia as an electrolyte and use the electrochemical oxygen pumping of the zirconia electrolyte. A linear relationship between oxygen concentration and the voltage arising at a current plateau occurs when oxygen accessing the electrolyte is limited by a diffusion barrier. A diffusion barrier is formed herein with a mixed electronic and oxygen ion-conducting membrane of lanthanum-containing perovskite or zirconia-containing fluorite. A heater may be used to maintain an adequate oxygen diffusion coefficient in the mixed conducting layer.

IP Status: Contact Licensing Executive for Details

Reference Number: 58

S Number: DOE reference no.(s): 80,407

Patents & Applications:
United States National Patent Number 5543025 Issued on 08/06/1996

Posted: 09-21-2004

Contact
John Mott
Technology Transfer Division
Los Alamos National Laboratory
P.O. Box 1663, MailStop C334
(505) 665-0883
jmott@lanl.gov