Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods
In this study, the sensitivity of reduced graphene oxide structures (rGO) to the action of selected gases (especially hydrogen, but also nitrogen dioxide and ammonia) was examined. Two sensing structures, based on rGO structures, obtained by different methods of oxidation (the modified Hummers, and...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/11/3175 |
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| author | Sabina Drewniak Marcin Procek Roksana Muzyka Tadeusz Pustelny |
| author_facet | Sabina Drewniak Marcin Procek Roksana Muzyka Tadeusz Pustelny |
| author_sort | Sabina Drewniak |
| collection | DOAJ |
| description | In this study, the sensitivity of reduced graphene oxide structures (rGO) to the action of selected gases (especially hydrogen, but also nitrogen dioxide and ammonia) was examined. Two sensing structures, based on rGO structures, obtained by different methods of oxidation (the modified Hummers, and the modified Tour’s method respectively), were investigated. We show here that the method used for the oxidation of rGO influences the sensitivity of the sensing structure during contact with various gaseous atmospheres. We performed our experiments in the atmosphere, containing hydrogen in a concentration range from 0 to 4% in nitrogen or synthetic air, both in dry and wet conditions. The temperature range was from 50 °C to 190 °C. Finally, we checked how the resistance of the samples changes when the other gases (NO<sub>2</sub>, NH<sub>3</sub>) appear in tested gas mixtures. The gas investigations were supplemented by the characterization of rGOs materials using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and N<sub>2</sub> sorption method. |
| first_indexed | 2024-03-10T19:23:50Z |
| format | Article |
| id | doaj.art-783933f9794f4e76b8df6c1b08d4a1c7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T19:23:50Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-783933f9794f4e76b8df6c1b08d4a1c72023-11-20T02:43:36ZengMDPI AGSensors1424-82202020-06-012011317510.3390/s20113175Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different MethodsSabina Drewniak0Marcin Procek1Roksana Muzyka2Tadeusz Pustelny3Department of Optoelectronics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, PolandDepartment of Optoelectronics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, PolandInstitute for Chemical Processing of Coal, 1 Zamkowa St., 41-803 Zabrze, PolandDepartment of Optoelectronics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, PolandIn this study, the sensitivity of reduced graphene oxide structures (rGO) to the action of selected gases (especially hydrogen, but also nitrogen dioxide and ammonia) was examined. Two sensing structures, based on rGO structures, obtained by different methods of oxidation (the modified Hummers, and the modified Tour’s method respectively), were investigated. We show here that the method used for the oxidation of rGO influences the sensitivity of the sensing structure during contact with various gaseous atmospheres. We performed our experiments in the atmosphere, containing hydrogen in a concentration range from 0 to 4% in nitrogen or synthetic air, both in dry and wet conditions. The temperature range was from 50 °C to 190 °C. Finally, we checked how the resistance of the samples changes when the other gases (NO<sub>2</sub>, NH<sub>3</sub>) appear in tested gas mixtures. The gas investigations were supplemented by the characterization of rGOs materials using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and N<sub>2</sub> sorption method.https://www.mdpi.com/1424-8220/20/11/3175reduced graphene oxidegas sensorsensing structurehydrogen |
| spellingShingle | Sabina Drewniak Marcin Procek Roksana Muzyka Tadeusz Pustelny Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods Sensors reduced graphene oxide gas sensor sensing structure hydrogen |
| title | Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods |
| title_full | Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods |
| title_fullStr | Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods |
| title_full_unstemmed | Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods |
| title_short | Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods |
| title_sort | comparison of gas sensing properties of reduced graphene oxide obtained by two different methods |
| topic | reduced graphene oxide gas sensor sensing structure hydrogen |
| url | https://www.mdpi.com/1424-8220/20/11/3175 |
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