کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
747064 894497 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Complex plane impedance plot as a figure of merit for tin dioxide-based methane sensors
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Complex plane impedance plot as a figure of merit for tin dioxide-based methane sensors
چکیده انگلیسی

Thick film methane sensors have been fabricated from nanosized tin dioxide powder containing antimony oxide and palladium. The powder has been prepared by sonication-assisted simultaneous precipitation and the sensors made with this powder showed optimum resistance for device applications and good sensitivity towards methane. This contrasts with the thick film sensors prepared with the powder synthesized without sonication, which showed very high resistance at the operating temperature. The complex plane impedance spectroscopy of the sensors (both in air and in the presence of gas) can be a good indicator of the sensor quality. It has been observed that the nature of the complex plane impedance plot of the sensors fabricated by using powders synthesized through sonication-assisted simultaneous precipitation matches well with that of high-quality imported Figaro (Japan) sensors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 119, Issue 2, 7 December 2006, Pages 431–434
نویسندگان
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