CAJ | 학술논문

文中介绍了一种管式结构的固体电解质NO_2气体传感器.该传感器是用溶胶–凝胶法制备的NASICON(钠离子导体) 为导电层材料,利用化学沉淀法制备的NiO和贵金属Au作为敏感电极材料制得的.文中研究了不同敏感电极材料对气体传感器性能的影响.以NiO+Au 作为敏感电极材料的传感器具有较大的灵敏度,当工作温度在300 ℃时,对浓度为(5～200)×10~(-6)的NO_2表现出了良好的气敏性能,传感器的灵敏度大于70 mV/decade.
문중개소료일충관식결구적고체전해질NO_2기체전감기.해전감기시용용효–응효법제비적NASICON(납리자도체) 위도전층재료,이용화학침정법제비적NiO화귀금속Au작위민감전겁재료제득적.문중연구료불동민감전겁재료대기체전감기성능적영향.이NiO+Au 작위민감전겁재료적전감기구유교대적령민도,당공작온도재300 ℃시,대농도위(5～200)×10~(-6)적NO_2표현출료량호적기민성능,전감기적령민도대우70 mV/decade.
Presented was the solid-electrolyte NO2 gas sensor with pipe structure. The NASICON(sodium super ionic conductor) material for the conductive layer was synthesized by sol-gel method, NiO by chemical precipitation and Au for the sensing materials. The effects of different sensing electrodes on the characteristics of the sensor were investigated. The sensor with NiO + Au as the sensing electrode gave the largest sensitivity to (5～200)×10~(-6) nitrogen dioxide in air at 300 ℃, the sensitivity (slope) was more than 70 mV/decade.