کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155060 | 1666335 | 2019 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
α-Fe2O3 loaded rGO nanosheets based fast response/recovery CO gas sensor at room temperature
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work illustrates a simple and cost effective methodology to develop nanoparticles of α-Fe2O3 embedded in layered rGO sheets which are found to be a potential material for the sensitive detection of CO gas at room temperature for the first time. The nanocomposite rGO-α-Fe2O3 shows improved CO gas sensing characteristics in comparison with pure α-Fe2O3. rGO sheets provide enhanced sensitivity through their extra-ordinarily high surface area (19.047â¯m2/gm rGO-α-Fe2O3), low response (21â¯s at 10â¯ppm) as well as recovery times (8â¯s at 10â¯ppm) etc. The material also shows p-type semiconducting behaviour at room temperature and has a high selectivity towards CO gas only. This work indicates a possibility of using this reduced graphene oxide based room temperature p-type semiconductor for sensing of other similar gases as well.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 465, 28 January 2019, Pages 56-66
Journal: Applied Surface Science - Volume 465, 28 January 2019, Pages 56-66
نویسندگان
Aviru Kumar Basu, Pankaj Singh Chauhan, Mohit Awasthi, Shantanu Bhattacharya,