کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7149784 | 1462120 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
H2S sensing performance of electrospun CuO-loaded SnO2 nanofibers
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report the synthesis of CuO-loaded SnO2 nanofibers via electrospinning as well as their H2S sensing properties in a comparative manner with unloaded, pure SnO2 nanofibers. Greatly enhanced H2S sensing capability was observed by loading a trace amount of CuO into SnO2 nanofibers. At 10Â ppm H2S, the CuO-loaded SnO2 nanofibers showed a response of 1.98Â ÃÂ 104 and response and recovery times of 1 and 10Â s, respectively. In addition, the CuO-loaded SnO2 nanofibers showed outstanding selectivity to H2S. Along with the unique sensing mechanism based on the creation and disruption of p-n junctions, the high specific surface area provided by the one-dimensional nanofiber shape and the facilitation of p-n junctions due to the presence of nanograins are responsible for the outstanding H2S sensing capability observed in the CuO-loaded SnO2 nanofibers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 169, 5 July 2012, Pages 54-60
Journal: Sensors and Actuators B: Chemical - Volume 169, 5 July 2012, Pages 54-60
نویسندگان
Sun-Woo Choi, Jin Zhang, Katoch Akash, Sang Sub Kim,