کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
239684 | 466199 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas sensing properties of MWCNTs decorated with gold or tin oxide nanoparticles
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Gas sensors based on oxygen plasma functionalised MWCNTs and plasma-treated nanotubes decorated either with gold nanoclusters or tin oxide nanoparticles were evaluated for the detection of NO2, CO and ethylene. The sensor active layers were deposited by airbrushing onto micro-machined silicon transducers. Sensitivity, linearity, selectivity, response and recovery times and humidity effect were studied. XPS and TEM were employed to analyse the gas sensitive films. Among the different sensors tested, those based on tin oxide decorated MWCNTs showed the highest sensitivity to NO2 (at ppb level) and the lowest humidity cross-sensitivity when operated at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Chemistry - Volume 1, Issue 1, September 2009, Pages 168-171
Journal: Procedia Chemistry - Volume 1, Issue 1, September 2009, Pages 168-171