کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7144211 | 1462063 | 2016 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development and testing of an electrochemical methane sensor
ترجمه فارسی عنوان
توسعه و آزمایش سنسور متان الکتروشیمیایی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In this article, the development of an electrochemical methane sensor is presented. The mixed potential based sensor is based on tin doped indium oxide (ITO) and platinum electrodes and yttria-stabilized zirconia (YSZ) electrolyte. The sensor was fabricated using the inexpensive tape-cast method. The sensor responded to methane with a response time of 15Â s. The staircase response to methane indicated a 44Â mV sensor response to 100Â ppm of methane. The sensor response indicated a log-linear relationship with the methane concentration. Upon 500Â h of sensor testing, a 5% reduction in methane sensitivity was observed. The cross-sensitivity study on the sensor indicated minimal interference to NO, NO2, and CO2. To improve the sensitivity to methane, a signal conditioning method referred to as the pulsed discharge technique (PDT) was applied. A fourfold increase in methane sensitivity was observed when the sensor was subjected to PDT. Future studies include the miniaturization of the sensor with integrated heater design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 228, 2 June 2016, Pages 162-167
Journal: Sensors and Actuators B: Chemical - Volume 228, 2 June 2016, Pages 162-167
نویسندگان
Praveen K. Sekhar, Jesse Kysar, Eric L. Brosha, Cortney R. Kreller,