【摘要】 文中介绍了一种管式结构的固体电解质NO₂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NO₂表现出了良好的气敏性能,传感器的灵敏度大于70 mV/decade.更多还原

【Abstract】 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.更多还原