NASICON固体电解质SO_2传感器的特性研究  

Research on Properties of SO_2 Sensor Based on NASICON Solid-electrolyte

作　　者：何月华[1] 全宝富[1] 梁喜双[1] 王彪[1] 

机构地区：[1]吉林大学电子科学与工程学院,吉林长春130012

出　　处：《计测技术》2006年第B09期6-9,共4页Metrology & Measurement Technology

基　　金：国家自然科学基金资助项目(60574096)

摘　　要：采用溶胶-凝胶法合成NASICON固体电解质材料,并以其为基体材料制作管式SO2传感器,敏感电极采用Na2SO3-30％BaSO4或者Na2SO4-30％BaSO4(摩尔比)复合硫酸盐。SO2浓度在(10- 100)×10-6体积分数范围内,两种器件的灵敏度分别为81．1和60．6mV／decade。敏感电极为Na2SO3-30％BaSO4的元件响应和恢复时间分别为28．2 s和57．7 s;敏感电极为Na2SO4-30％BaSO4的元件响应和恢复时间分别为39．8 s和67．4 s。NASICON solid-electrolyte can be synthesized by sol-gel method. The tube-type SO2 sensor based on NASICON is fabricated with Na2SO3-30%BaSO4 or Na2SO4-30%BaSO4 （molar ratio） sensing electrode. Within a range of SO2 volume ratio concentration from 10 × 10^-6 to 100× 10^-6 , the sensi- tivities are 81. 1 and 60. 6mV/decade, respectively. The response and recovery time of sensor with Na2SO3-30%BaSO4 sensing electrode are 28. 2 and 57. 7s, which are 39.8 and 67. 4s for the sensor with Na2 SO4-30% BaSO4.

关 键 词：SO2传感器 NASICON Na2SO3-BaSO4 Na2SO4-BaSO4 

分 类 号：TQ131.12[化学工程—无机化工] TP212.1[自动化与计算机技术—检测技术与自动化装置]