采用甘氨酸—硝酸盐法制备La0.8Sr0.2Co0.8Fe0.2O3-δ(LSCF)昆合导体致密扩散障碍层材料.采用溶胶凝胶-低温燃烧法制备Ce0.8Sm0.2O1.9(SDC)固体电解质材料和电子阻碍材料BaZr0.1Ce0.7Y0.1Yb0.1O3-δ(BZ-CYYb).用Pt浆粘合LSCF陶瓷与SDC-BZCYYb陶瓷,来制备致密扩散障碍层极限电流型氧传感器,对该氧传感器进行氧敏性能测试.测试结果表明:以LSCF做为致密扩散障碍层、SDC做为固体电解质的致密扩散障碍层极限电流型氧传感器在引入电子阻碍材料BZCYYb后,在700℃温度下,氧体积分数为0~21%范围内,均获得良好的极限电流平台,极限电流最大值达25 mA,出现极限电流平台的电压为0.5V ~ 1.7V,极限电流与氧体积分数呈良好的线性关系,响应时间约5s ~ 10s;测量误差约为±1%.研究结果为该传感器的实际应用提供了理论与实验依据.
参考文献
[1] | Elyassi B;Rajabbeigi N;Khodadadi A;Mohajerzadeh SS;Sahimi M .An yttria-doped ceria-based oxygen sensor with solid-state reference[J].Sensors and Actuators, B. Chemical,2004(1/2):178-183. |
[2] | E. Ivers-Tiffee;K. H. Hardtl;W. Menesklou;J. Riegel .Principles of solid state oxygen sensors for lean combustion gas control[J].Electrochimica Acta,2001(5):807-814. |
[3] | Rajiv Doshi;Von L. Richards;J. D. Carter;Xiaoping Wang;Michael Krumpelt .Development of solid-oxide fuel cells that operate at 500℃[J].Journal of the Electrochemical Society,1999(4):1273-1278. |
[4] | Dusastre V.;Kilner J.A. .Optimisation of composite cathodes for intermediate temperature SOFC applications[J].Solid state ionics,1999(1/2):163-174. |
[5] | Yen-Pei Fu .Ionic conductivity and mechanical properties of Y_2O_3-doped CeO_2 ceramics synthesis by microwave-induced combustion[J].CERAMICS INTERNATIONAL,2009(2):653-659. |
[6] | Huang S;Li L;Van der Biest O;Vleugels J .Influence of the oxygen partial pressure on the reduction of CeO2 and CeO2-ZrO2 ceramics[J].Solid state sciences,2005(5):539-544. |
[7] | Garzon F.;Brosha E.;Houlton R.;Chung BW.;Raistrick I. .Dense diffusion barrier limiting current oxygen sensors[J].Sensors and Actuators, B. Chemical,1998(2):125-130. |
[8] | 周芬,仲崇英,宋希文,李培忠,郝喜红,安胜利.尿素燃烧法合成La0.8Sr0.2FeyCo1-yO3-δ及其性能表征[J].稀土,2009(05):1-5. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%