کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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745033 | 1462106 | 2013 | 8 صفحه PDF | دانلود رایگان |
The sensing performance of the Zn–Sn–O and ZnCo2O4 oxide electrodes to carbon monoxide and propane at 600 °C was investigated. The planar-type mixed-potential sensor coupled with Zn2SnO4 + SnO2 as sensing electrode indicated a linear relationship between the responses of the sensor and the logarithm of CO concentrations within a range from 60 ppm to 1500 ppm. The sensor showed good signal reproducibility at 600 °C while some interference from NO2 and C3H8 were also observed. On the other hand, the sensor using the ZnCo2O4 sensing electrode indicated a higher response to propane and excellent selectivity to NO2 and CO at 600 °C. These two new sensing electrodes demonstrated a significant potential to be employed for the selective mixed-potential CO/C3H8 sensors for online monitoring automobile gas emissions.
Journal: Sensors and Actuators B: Chemical - Volume 184, 31 July 2013, Pages 220–227