کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7144641 | 1462063 | 2016 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gas sensing properties of defect-induced single-walled carbon nanotubes
ترجمه فارسی عنوان
خواص گاز خواص نانولوله های کربنی تک کشی ناشی از نقص
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
We report a method to induce defects on the surface of single-walled carbon nanotubes (SWNTs) in order to improve the gas-sensing properties of an SWNT-based sensor. In this approach, the surface of the SWNTs is physically modified by thermal treatment at high temperature. The fabricated SWNT-based sensors were subjected to rapid thermal annealing (RTA) over the temperature range of 300-800 °C. After the thermal treatment, the electrical resistances of the defect-induced SWNT sensors were measured and compared with those of pristine SWNT sensors. The gas sensing properties of the defect-induced SWNT sensors upon exposure to various gases such as NO2, NH3, and H2 were measured at room temperature. The thermally treated SWNT-based sensors exhibited much higher sensitivity and recovery than the pristine sensors. These results indicate that the defect-induced SWNTs can improve the performance of SWNT-based sensors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 228, 2 June 2016, Pages 688-692
Journal: Sensors and Actuators B: Chemical - Volume 228, 2 June 2016, Pages 688-692
نویسندگان
Jaeseong Kim, Sun-Woo Choi, Je-Haeng Lee, Youngchul Chung, Young Tae Byun,