摘要
制作了一种新型微型结构CO2传感器，该传感器采用Al2O3陶瓷片作为衬底，sol—gel法制备的固体电解质NASICON（sodium super ionic conductor）材料为离子导电层，复合碳酸盐Li2CO3-BaC03（摩尔比为1：1.5）为敏感电极。该传感器在CO2浓度为（500-5000）×10^-6体积分数范围内表现出良好的敏感特性，灵敏度达到67.3mV／decade（毫伏／10×10^-6体积分数），并且功耗由原来的1．08w降到0．72W。微型元件的响应恢复时间分别为20S和58S。
A new mini-type CO2 gas sensors based on NASICON （sodium super ionic conductor） were fabricated. The solid-electrolyte NASICON materials were synthesized by sol-gel method. NASICON materials were coated on an alumina pellet substrate as ion electric layer. And the sensing electrode was Li2COa-BaCO3 binary carbonates in molar ratio 1：1.5. This mini-type CO2 gas sensor possessed good sensitivity in the CO2 concentration range from 500 to 5 000×10^-6 and lower power consumption. The sensitivity of this mini-type CO2 sensor at 120 mA was 67.3 mV/decade. The power consumption decreased from 1.08 W to 0.72 W. The response and recovery time are 20 s and 58 s, respectively.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2006年第8期41-42,共2页
Electronic Components And Materials
基金
吉林大学校内创新基金资助项目(2003CX029)
教育部归国留学人员启动基金资助项目
