Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection
High-performance gas sensors can offer great potentials for monitoring and detection of volatile organic compounds (VOCs) in both domestic and industrial environment. In the present work, a new HCHO gas sensor was constructed with reduced graphene oxide (RGO) induced by the oximation reaction. The g...
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| Format: | Article |
| Language: | English |
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Springer
2020-04-01
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| Series: | Journal of Saudi Chemical Society |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S131961032030017X |
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| author | Lei Zhou Rong Qian Shangjun Zhuo Qiao Chen Zhaoyin Wen Guorong Li |
| author_facet | Lei Zhou Rong Qian Shangjun Zhuo Qiao Chen Zhaoyin Wen Guorong Li |
| author_sort | Lei Zhou |
| collection | DOAJ |
| description | High-performance gas sensors can offer great potentials for monitoring and detection of volatile organic compounds (VOCs) in both domestic and industrial environment. In the present work, a new HCHO gas sensor was constructed with reduced graphene oxide (RGO) induced by the oximation reaction. The gas-sensing performance test results suggested that the RGO hydroxylamine hydrochloride (RGO/HA-HCl) sensor presented a high response of 75% at 16 ppm HCHO at room temperature, and a high selectivity for HCHO suffering little interference with high concentrations of volatile organic compounds, including methanol, ethanol, and methylbenzene, dichloromethane and water. Additionally, the RGO/HA-HCl sensor also showed a good long-term stability with RSD of 5.83% for a 15-day continuous sensing test, and the detection limit (DL) could reach 0.023 ppm under ambient conditions. Moreover, the mechanism for the high sensitivity and selectivity of formaldehyde was further established by in-situ gas chromatography mass spectrometry (GC–MS). This work would provide a reliable new HCHO gas sensor which could be used for monitoring and forewarning the emission of HCHO for a better protection and improvement of our environment. Keywords: Oximation reaction, Reduced graphene oxide, Gas sensor, Formaldehyde, Selectivity |
| format | Article |
| id | doaj-art-19ab3ca56352440a8a6efc035190845d |
| institution | Kabale University |
| issn | 1319-6103 |
| language | English |
| publishDate | 2020-04-01 |
| publisher | Springer |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj-art-19ab3ca56352440a8a6efc035190845d2025-08-20T03:49:03ZengSpringerJournal of Saudi Chemical Society1319-61032020-04-0124436437310.1016/j.jscs.2020.02.001Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detectionLei Zhou0Rong Qian1Shangjun Zhuo2Qiao Chen3Zhaoyin Wen4Guorong Li5National Center for Inorganic Mass Spectrometry in Shanghai, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR ChinaNational Center for Inorganic Mass Spectrometry in Shanghai, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Corresponding author.National Center for Inorganic Mass Spectrometry in Shanghai, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR ChinaDepartment of Chemistry, School of Life Science, University of Sussex, Brighton BN1 9QJ, United KingdomCAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR ChinaNational Center for Inorganic Mass Spectrometry in Shanghai, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR ChinaHigh-performance gas sensors can offer great potentials for monitoring and detection of volatile organic compounds (VOCs) in both domestic and industrial environment. In the present work, a new HCHO gas sensor was constructed with reduced graphene oxide (RGO) induced by the oximation reaction. The gas-sensing performance test results suggested that the RGO hydroxylamine hydrochloride (RGO/HA-HCl) sensor presented a high response of 75% at 16 ppm HCHO at room temperature, and a high selectivity for HCHO suffering little interference with high concentrations of volatile organic compounds, including methanol, ethanol, and methylbenzene, dichloromethane and water. Additionally, the RGO/HA-HCl sensor also showed a good long-term stability with RSD of 5.83% for a 15-day continuous sensing test, and the detection limit (DL) could reach 0.023 ppm under ambient conditions. Moreover, the mechanism for the high sensitivity and selectivity of formaldehyde was further established by in-situ gas chromatography mass spectrometry (GC–MS). This work would provide a reliable new HCHO gas sensor which could be used for monitoring and forewarning the emission of HCHO for a better protection and improvement of our environment. Keywords: Oximation reaction, Reduced graphene oxide, Gas sensor, Formaldehyde, Selectivityhttp://www.sciencedirect.com/science/article/pii/S131961032030017X |
| spellingShingle | Lei Zhou Rong Qian Shangjun Zhuo Qiao Chen Zhaoyin Wen Guorong Li Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection Journal of Saudi Chemical Society |
| title | Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection |
| title_full | Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection |
| title_fullStr | Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection |
| title_full_unstemmed | Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection |
| title_short | Oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection |
| title_sort | oximation reaction induced reduced graphene oxide gas sensor for formaldehyde detection |
| url | http://www.sciencedirect.com/science/article/pii/S131961032030017X |
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