文章信息
- 【作者】：Liu FM (Liu Fangmeng),Ma C (Ma Ce),Hao XD (Hao Xidong),Yang CH (Yang Chunhua),Zhu HQ (Zhu Hongqiu),Liang XS* (Liang Xishuang),Sun P (Sun Peng),Liu FM (Liu Fengmin),Chuai XH (Chuai Xiaohong),Lu GY *(Lu Geyu)
- 【题目】：Highly sensitive gas sensor based on stabilized zirconia and CdMoO4 sensing electrode for detection of acetone
- 【关键词】：Acetone sensor,CdMoO4,YSZ,Mixed potential
- 【版面信息】：SENSORS AND ACTUATORS B-CHEMICAL 248 (2017) 9-18
A highly sensitive mixed potential type gas sensor based on stabilized zirconia (YSZ) and CdMoO4 sensing electrode (SE) was developed and used for detection of acetone at 625 ℃. By comparing the sensing performance for different devices fabricated, the sensor utilizing CdMoO4-SE exhibited the highest response value (-133.5 mV) to 100 ppm acetone at 625 ℃, and even could achieve low detection limit of 500 ppb at 625 ℃. The sensor attached with CdMoO4-SE displayed high sensitivity of -84 mV/decade to acetone in the range of 5-300 ppm at 625 ℃. The present device also showed good repeatability, selectivity to certain deleterious gases, moisture resistance and acceptable drifts in 10 days measured period at 625 ℃, demonstrating great potential for practical application in acetone sensing detection. Additionally, the sensor involving mixed potential mechanism was proposed and further clarified by polarization curve.