Novel zirconia-based NO2 sensor attached with carbon sensing-electrode
Novel zirconia-based NO2 sensor attached with carbon sensing-electrode
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DOI：
10.1016/j.elecom.2014.06.010
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发表时间：
2014-09
影响因子：
5.4
通讯作者：
Tomoaki Sato;H. Ikeda;N. Miura
中科院分区：
文献类型：
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作者：
Tomoaki Sato;H. Ikeda;N. Miura
使用各种碳作为新型传感电极（SE）材料制造了基于氧化钇稳定氧化锆（YSZ）的气体传感器，并评估了它们对氮氧化物（NOx、NO和NO2）的传感特性。在测试的四种碳 SE 中，活性炭 SE 在 300 °C 的操作温度下具有较高的灵敏度和相对较高的 NO2 选择性。该传感器的高 NO2 灵敏度/选择性被证实是由于对 NO2 的电化学催化活性比对其他气体（NO 和 C3H6）高得多。
Yttria-stabilized zirconia (YSZ)-based gas sensors using each of various carbons as a new sensing-electrode (SE) material were fabricated and their sensing characteristics to nitrogen oxides (NOx, NO and NO2) were evaluated. Among the four carbon-SEs tested, the activated-carbon SE was found to give a high sensitivity and a relatively high selectivity to NO2at an operational temperature of 300 °C. The high NO2sensitivity/selectivity of the sensor was confirmed to be due to a much higher electrochemical catalytic-activity to NO2than those to other gases (NO and C3H6).