کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7143000 | 1462055 | 2016 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of Co-doped SnO2 nanofibers and their enhanced gas-sensing properties
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, pure and 1-5Â mol% Co-doped SnO2 nanofibers were synthesized via an electrospinning method. The morphological and microstructural properties of these nanofibers were obviously changed and the grain size of the SnO2 nanocrystal were greatly decreased by Co doping. Sensors based on these nanofibers were fabricated after a hot pressing process on the ceramic plates. The gas-sensing properties of pure and Co-doped SnO2 nanofibers were tested to several kinds of Volatile Organic Compounds (VOCs). The results indicated that among all the samples (0, 1, 3 and 5Â mol% Co-doped SnO2 nanofibers), 3Â mol% Co-doped SnO2 nanofibers showed the highest response toward 100Â ppm ethanol, having a response of 40.1, which was over 4 times higher than pure SnO2 nanofibers. At the same time, the sensors based on 3Â mol% Co-doped SnO2 nanofibers also exhibited good repeatability and long term stability, which were promising for designing ethanol gas sensor with high performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 236, 29 November 2016, Pages 425-432
Journal: Sensors and Actuators B: Chemical - Volume 236, 29 November 2016, Pages 425-432
نویسندگان
Xueying Kou, Chong Wang, Mengdi Ding, Changhao Feng, Xin Li, Jian Ma, Hong Zhang, Yanfeng Sun, Geyu Lu,