کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5009053 1462039 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of porous SnO2 nanowires gas sensors with enhanced sensitivity
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Fabrication of porous SnO2 nanowires gas sensors with enhanced sensitivity
چکیده انگلیسی


- Highly porous SnO2 nanowires were prepared via electrospinning followed by hydrothermally N2S etching process.
- Greatly enhanced chemical sensing performance was obtained for the porous nanowires.
- The sensor showed selectively sensing performance to ethanol.

With large surface area, metal oxide porous nanostructures usually exhibited enhanced sensitivities when used as chemical sensors. In this work, porous SnO2 nanowires (PNWs) with the diameter of about 130 nm and length up to 10 μm are synthesized by a controlled two-step method including electrospinning followed with hydrothermal etching treatment by Na2S solution, which were used to fabricate high-performance gas sensors. Studies found that, compared with the electrospun pristine SnO2 NWs without hydrothermal treatment, the SnO2 PNWs exhibited remarkably enhanced gas sensing performances, including two times higher responsivity to ethanol. The method used here may be easily extended to synthesize other metal oxide nanostructures for high performance chemical sensors.

130

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 252, November 2017, Pages 79-85
نویسندگان
, , , , , , , ,