Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance
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| Định dạng: | Bài Báo |
| Ngôn ngữ: | English |
| Nhà xuất bản: |
Sensors and Actuators A: Physical
2021
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| Truy cập trực tuyến: | https://www.sciencedirect.com/science/article/abs/pii/S0924424720317696?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/1929 |
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oai:localhost:PNK-19292022-08-17T05:54:52Z Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance Chu, Manh Hung Han, Viet Phuong Vu, Van Thinh Le, Thi Hong Nguyen, Tat Thang Nguyen, Hong Hanh Nguyen, Quang Dich Nguyen, Van Hieu Nguyen, Van Duy Nguyen, Duc Hoa ZnO/SnO2 nanofibers Au doped Electrospinning H2S gas sensor Q1 Nanofibers of ZnO-SnO2 nanocomposites doped with Au crystals were synthesized by an electrospinning method for enhancement of H2S gas sensing performance. The mixed solution of zinc acetate dihydrate and tin(II) chloride dihydrate, dissolved in ethanol/DMF solvent, was spun directly on the interdigital Pt electrodes for sensor fabrication. Thermal treatment was carried out to convert the spun nanofibers into ZnO-SnO2 nanocomposites doped with Au crystals. SEM and TEM observation confirmed the formation of porous nanofibers with an average diameter of about 120 nm. X-ray diffraction studies revealed that the nanocomposites of ZnO and SnO2 phases were formed, but not ZnSnO3, despite the precursor solution being mixed on the atomic scale from the starting solution. Doping with 0.001, 0.005 and 0.01 wt.% of Au slightly changed the morphology of the nanofibers because the Au was not doped into the crystals of ZnO or SnO2, but mostly existed as the surface decoration. This ensured that the effective surface catalyzed the gas reaction, thus enhance the sensing performance. Gas sensitivity to H2S gas was improved by approximately 700% with the optimal doping concentration of Au. 2021-07-05T07:21:39Z 2021-07-05T07:21:39Z 2021 Article https://www.sciencedirect.com/science/article/abs/pii/S0924424720317696?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/1929 10.1016/j.sna.2020.112454 en application/pdf Sensors and Actuators A: Physical |
| institution |
Digital Phenikaa |
| collection |
Digital Phenikaa |
| language |
English |
| topic |
ZnO/SnO2 nanofibers Au doped Electrospinning H2S gas sensor |
| spellingShingle |
ZnO/SnO2 nanofibers Au doped Electrospinning H2S gas sensor Chu, Manh Hung Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance |
| description |
Q1 |
| author2 |
Han, Viet Phuong |
| author_facet |
Han, Viet Phuong Chu, Manh Hung |
| format |
Article |
| author |
Chu, Manh Hung |
| author_sort |
Chu, Manh Hung |
| title |
Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance |
| title_short |
Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance |
| title_full |
Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance |
| title_fullStr |
Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance |
| title_full_unstemmed |
Au doped ZnO/SnO2 composite nanofibers for enhanced H2S gas sensing performance |
| title_sort |
au doped zno/sno2 composite nanofibers for enhanced h2s gas sensing performance |
| publisher |
Sensors and Actuators A: Physical |
| publishDate |
2021 |
| url |
https://www.sciencedirect.com/science/article/abs/pii/S0924424720317696?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/1929 |
| _version_ |
1751856297467183104 |
| score |
8.891053 |