کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
741974 | 1462086 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hierarchical flower-like WO3 nanostructures and their gas sensing properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Flower-like WO3 composed of nanosheets were successfully synthesized by calcining the acid-treated hydrothermal precursor. Field emission scanning electron microscopy and transmission electron microscopy results reveal that the flower-like WO3 are assembled by a number of irregular-shaped nanosheets, which are cross-linked in the interior of the microflower. A possible formation mechanism is proposed on the basis of the results of time-dependent experiments. Moreover, the gas sensing properties of the obtained flower-like nanostructured WO3 were investigated. It is found that the sensor based on the flower-like WO3 nanostructure exhibits good selectivity and high response to NO2, and the detection limit is about 2 ppb.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 204, 1 December 2014, Pages 224–230
Journal: Sensors and Actuators B: Chemical - Volume 204, 1 December 2014, Pages 224–230
نویسندگان
Chong Wang, Ruize Sun, Xin Li, Yanfeng Sun, Peng Sun, Fengmin Liu, Geyu Lu,