Limiting Current Oxygen Sensors with LSM as Dense Diffusion Barrier

Abstract

Abstract: A new type of limiting current oxygen sensor using yttria (8mol%) stabilized zirconia (YSZ) as oxygen ion
conducting solid electrolytes and La_0.8Sr_0.2MnO₃ (LSM) as diffusion barrier was developed successfully through a new and effective technology.
This new technology avoids the problem that the sintering shrinkage percentages of YSZ and LSM are different with each other. The oxygen sensor
made by this technology displays excellent characteristics from 0% oxygen concentration to ambient air oxygen partial pressure, and offers a
simpler design, a shorter response time, a long term working stability and a potentially lower cost than existing limiting current oxygen sensors.

Key words: solid electrolyte, oxygen sensor, limiting current, dense diffusion barrier

CLC Number:

XIA Hui,LI Fu-Shen,WU Wei-Jiang,YANG Mei,LI Li-Fen. Limiting Current Oxygen Sensors with LSM as Dense Diffusion Barrier[J]. Journal of Inorganic Materials.

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Limiting Current Oxygen Sensors with LSM as Dense Diffusion Barrier

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