用LSCo作扩散障碍层的极限电流型氧传感器  

Limiting Current oxygen sensors with LSCo a Dense Difrusion Barrier

作　　者：李福燊[1] 杨媚[1] 吴卫江[1] 李丽芬[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《北京科技大学学报》2004年第5期495-497,共3页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助(No.50272009);教育部高等学校博士学科点专项科研基金(No.20020008003)

摘　　要：采用简单工艺,制备出以8％Y2O3(摩尔分数)稳定的ZrO2为固体电解质,La0.8Sr0.2CoO3混合导体材料为扩散障碍层的极限电流型氧传感器.该传感器能够很好地给出全范围空燃比的极限电流平台,与小孔或多孔极限电流型传感器相比,具有结构简单、响应快、工作可靠、成本低廉等优点.Limiting current oxygen sensors with LSCo as dense diffusion barrier and Yttria (8% in molar fraction) Stabilized Zirconia (YSZ) as oxygen ion conduction solid electrolytes was developed through an effective technology. This type of sensor can get stable current plateau in whole range of air-fuel ratio. Compared with existing limiting current oxygen sensors, it has a simpler design, a faster response and lower cost, thus has a good application.

关 键 词：固体电解质 La1-xSrxCoO3 氧传感器 极限电流 致密扩散障碍层 

分 类 号：TM4[电气工程—电器]