P2.6.3 A planar oxygen sensor with a dense 8YSZ diffusion barrier

Event

14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany

Chapter

P2.6 Electrochemical-based Sensors

Author(s)

J. Jian, J. Zou - The college of information science and engineering of Ningbo University (China), S. Wan - The energy materials research center of Shanghai Institute of Ceramics, CAS (China)

Pages

1595 - 1597

DOI

10.5162/IMCS2012/P2.6.3

ISBN

978-3-9813484-2-2

Price

free

Abstract

A novel type dense diffusion barrier oxygen sensor was introduced. The 8 mol% yttria-stabilized zirconia (8YSZ) was used in the preparation of the dense diffusion layer as well as oxygen pump layer. From the tested results, it can find out that the limiting current of sensor exhibits no linear relationship with oxygen concentration which clearly different from the traditional dense diffusion barrier oxygen sensor. In order to explain this difference, a diffusion model was illustrated and from this model, the new function of limiting current vs. oxygen concentration can be gotten.