Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method
Nanostructured tungsten trioxide porous films were prepared by a non-hydrolytic sol–gel method following the inorganic route in which ethanol and PEG were used as the oxygen-donor and structure-directing reagent, respectively. The effects of aging time of the precursor solution, PEG conten...
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MDPI AG
2018-12-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/9/1/8 |
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doaj-fafd508cfad94af5a19f5c7a4fd3d68d2020-11-25T00:17:32ZengMDPI AGNanomaterials2079-49912018-12-0191810.3390/nano9010008nano9010008Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel MethodSikai Zhao0Yanbai Shen1Pengfei Zhou2Guodong Li3Cong Han4Dezhou Wei5Xiangxi Zhong6Yunhai Zhang7Yuxin Ao8School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Mineral Processing, Beijing, 102628, ChinaSchool of Mechanical and Electrical Engineering, Shenyang Aerospace University, Shenyang 110136, ChinaNanostructured tungsten trioxide porous films were prepared by a non-hydrolytic sol–gel method following the inorganic route in which ethanol and PEG were used as the oxygen-donor and structure-directing reagent, respectively. The effects of aging time of the precursor solution, PEG content, and calcination temperature on the structure, morphology, and NO2 sensing properties of WO3 films were systematically investigated by using the techniques of X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and gas sensing measurements. The results demonstrated that a series of WO3 films with different microstructures could be obtained by manipulating the synthesis parameters. Furthermore, a suitable synthesis condition of WO3 films for NO2 sensing application was determined.http://www.mdpi.com/2079-4991/9/1/8WO3porous filmsnon-hydrolytic sol–gelNO2gas sensing |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Sikai Zhao Yanbai Shen Pengfei Zhou Guodong Li Cong Han Dezhou Wei Xiangxi Zhong Yunhai Zhang Yuxin Ao |
| spellingShingle |
Sikai Zhao Yanbai Shen Pengfei Zhou Guodong Li Cong Han Dezhou Wei Xiangxi Zhong Yunhai Zhang Yuxin Ao Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method Nanomaterials WO3 porous films non-hydrolytic sol–gel NO2 gas sensing |
| author_facet |
Sikai Zhao Yanbai Shen Pengfei Zhou Guodong Li Cong Han Dezhou Wei Xiangxi Zhong Yunhai Zhang Yuxin Ao |
| author_sort |
Sikai Zhao |
| title |
Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method |
| title_short |
Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method |
| title_full |
Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method |
| title_fullStr |
Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method |
| title_full_unstemmed |
Influence of Synthesis Conditions on Microstructure and NO2 Sensing Properties of WO3 Porous Films Synthesized by Non-Hydrolytic Sol–Gel Method |
| title_sort |
influence of synthesis conditions on microstructure and no2 sensing properties of wo3 porous films synthesized by non-hydrolytic sol–gel method |
| publisher |
MDPI AG |
| series |
Nanomaterials |
| issn |
2079-4991 |
| publishDate |
2018-12-01 |
| description |
Nanostructured tungsten trioxide porous films were prepared by a non-hydrolytic sol–gel method following the inorganic route in which ethanol and PEG were used as the oxygen-donor and structure-directing reagent, respectively. The effects of aging time of the precursor solution, PEG content, and calcination temperature on the structure, morphology, and NO2 sensing properties of WO3 films were systematically investigated by using the techniques of X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and gas sensing measurements. The results demonstrated that a series of WO3 films with different microstructures could be obtained by manipulating the synthesis parameters. Furthermore, a suitable synthesis condition of WO3 films for NO2 sensing application was determined. |
| topic |
WO3 porous films non-hydrolytic sol–gel NO2 gas sensing |
| url |
http://www.mdpi.com/2079-4991/9/1/8 |
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