| Humidity-resistant ethanol gas sensors based on electrospun tungsten-doped cerium oxide hollow nanofibers | |
Wang, Xinge1; Wang, Xukun1; Wei, Wei1; Jiang, Haiqing1; Li, Xijuan1; Liu, Guo1; Zhu, Zhiqi1; Li, Bingsheng2; Sheng, Yanbin3; Zhou, JY(周金元)1 ; Xie, EQ(谢二庆)1; Zhang, ZX(张振兴)1 | |
| 2023-10-15 | |
| Online publication date | 2023-06 |
| Source Publication | SENSORS AND ACTUATORS B-CHEMICAL Impact Factor & Quartile |
| ISSN | 0925-4005 |
| Volume | 393 |
| page numbers | 8 |
| Abstract | Serious interference of humidity limits the wide application of ethanol gas sensors. The transition metal tungsten (W) doped cerium dioxide (CeO2), possessing a hydrophobic nature and rich oxygen vacancies, will tackle the humidity issue. Herein, the pristine and W-doped CeO2 hollow nanofibers were successfully fabricated by electrospinning. Oxygen vacancy content increases first and then decreases with the doping tungsten, and the 1 mol% W-doped CeO2 sample presents the largest content. Further, the 1 mol% W-doped CeO2 sensor exhibits an excellent response of 10.2 to 100 ppm ethanol at 200° C, 3.5 times higher than the pure CeO2 sensor, good selectivity, repeatability, and long-term stability. In addition, the responses of the W-CeO2 sensors are almost humidity independent. The resistances in air and ethanol decrease gradually with the humidity increases, leading to the humidity-resistant response, mainly attributed to the hindered carrier migration by the type-I CeO2/WO3 heterojunction. These results indicate that the appropriate W-doped CeO2 is a potential humidity-resistant gas-sensing material for ethanol sensing. © 2023 Elsevier B.V. |
| Keyword | Chemical sensors Electrospinning Ethanol Gas detectors Heterojunctions Nanofibers Oxides Oxygen vacancies Transition metal oxides Transition metals Tungsten compounds Carrier migration Electrospuns Ethanol gas sensors Ethanol sensing Gas-sensing materials Hollow nanofibers Hydrophobic nature Long term stability Vacancy content |
| Publisher | Elsevier B.V. |
| DOI | 10.1016/j.snb.2023.134210 |
| Indexed By | EI ; SCIE |
| Language | 英语 |
| WOS Research Area | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| WOS Subject | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
| WOS ID | WOS:001058572200001 |
| EI Accession Number | 20232714345617 |
| EI Keywords | Cerium oxide |
| EI Classification Number | 531 Metallurgy and Metallography ; 714 Electronic Components and Tubes ; 714.2 Semiconductor Devices and Integrated Circuits ; 761 Nanotechnology ; 801 Chemistry ; 804 Chemical Products Generally ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds ; 819.3 Fiber Chemistry and Processing ; 914.1 Accidents and Accident Prevention ; 933 Solid State Physics ; 933.1 Crystalline Solids ; 943.3 Special Purpose Instruments |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/532194 |
| Collection | 物理科学与技术学院 |
| Corresponding Author | Zhang, Zhenxing |
| Affiliation | 1.Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, School of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China; 2.State Key Laboratory for Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang; 621010, China; 3.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou; 730000, China |
| First Author Affilication | School of Physical Sicence and Technology |
| Corresponding Author Affilication | School of Physical Sicence and Technology |
| Recommended Citation GB/T 7714 | Wang, Xinge,Wang, Xukun,Wei, Wei,et al. Humidity-resistant ethanol gas sensors based on electrospun tungsten-doped cerium oxide hollow nanofibers[J]. SENSORS AND ACTUATORS B-CHEMICAL,2023,393. |
| APA | Wang, Xinge.,Wang, Xukun.,Wei, Wei.,Jiang, Haiqing.,Li, Xijuan.,...&Zhang, Zhenxing.(2023).Humidity-resistant ethanol gas sensors based on electrospun tungsten-doped cerium oxide hollow nanofibers.SENSORS AND ACTUATORS B-CHEMICAL,393. |
| MLA | Wang, Xinge,et al."Humidity-resistant ethanol gas sensors based on electrospun tungsten-doped cerium oxide hollow nanofibers".SENSORS AND ACTUATORS B-CHEMICAL 393(2023). |
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