High-temperature NO₂ gas sensor based on stabilized zirconia and CoTa₂O₆ sensing electrode

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• 作者：Fangmeng Liu^bAuthor Vitae ; Bin Wang^bAuthor Vitae ; Xue Yang^bAuthor Vitae ; Yehui Guan^bAuthor Vitae ; Qingji Wang^dAuthor Vitae ; Xishuang Liang^a ; ^b ; ^{liangxs@jlu.edu.cn}Author Vitae ; Peng Sun^bAuthor Vitae ; Yue Wang^cAuthor Vitae ; Geyu Lu^a ; ^b ; ^{lugy@jlu.edu.cn}Author Vitae
• 关键词：NO2 sensor ; Stabilized zirconia ; CoTa2O6 ; Mixed-potential
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：240
• 期：Complete
• 页码：148-157
• 全文大小：3668 K
• 卷排序：240

文摘

The YSZ-based mixed-potential type gas sensor using CoTa2O6-SE was developed for NO2 detection at high temperature. The device utilizing CoTa2O6-SE sintered at 1000 °C gave the highest response of 93 mV to 100 ppm NO2 at 650 °C. The sensitivity of the fabricated sensor to NO2 in the concentration range of 5–500 ppm was 80 mV/decade. The fabricated sensor also exhibited good selectivity, stability and slight effect of oxygen and moisture at 650 °C.