摘要
以LaNi_(0.6)Fe_(0.4)O_3-δ(LNF)为致密扩散层材料,以8YSZ(8mol%Y2O_3+Zr O_2)和Ce_(0.9)Gd_(0.1)O_(1.95)(GDC)为固体电解质材料,采用共压-共烧法制备了双层电解质型致密扩散障极限电流氧传感器,研究了氧含量和温度对氧传感器氧敏性能的影响。实验结果表明:氧传感器在800~820℃温度范围,氧含量在0.3%~1.2%气氛下,显示出良好的极限电流平台,氧传感器的响应时间和恢复时间分别约为35 s和45 s。极限电流与氧浓度φ(O_2)之间存在较好的线性关系,并且氧传感器log(IL·T)-1/T曲线线性相关。
A new limiting current oxygen sensor using LaNio,6Fe0.403-δ （LNF） as dense diffusion barrier and 8YSZ （8mol% Y2O3 ＋ ZrO2） and Ce0.9 Gd0.1O1.95 （GDC） as electrolyte layer was developed successfully via co-pressing and co-sintering method. The influences of temperature and oxygen content on oxygen sensitive characteristic for oxygen sensor were measured. The results indicate that the sensors exhibit better current plateaus at 800-820 ℃ with oxygen concentration varying from 0.3% to 1.2%. The response/recovery times of oxygen sensor are about 35 s and 45 s, respectively. The limiting current has a good linear relationship with oxygen concentration. And the curves of log（IL·T）-1/T for oxygen sensor are linear correlation.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2018年第2期541-546,共6页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(51464038)
内蒙古自治区高等学校科学研究项目(NJZY14168)
关键词
氧传感器
极限电流
双层电解质
致密扩散障层
oxygen sensor
limiting current
bilayer electrolyte
dense diffusion barrier
