Graphene-enhanced metal oxide gas sensors at room temperature: a review
Owing to the excellent sensitivity to gases, metal-oxide semiconductors (MOS) are widely used as materials for gas sensing. Usually, MOS gas sensors have some common shortages, such as relatively poor selectivity and high operating temperature. Graphene has drawn much attention as a gas sensing mate...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2018-11-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.9.264 |
| _version_ | 1818420936522596352 |
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| author | Dongjin Sun Yifan Luo Marc Debliquy Chao Zhang |
| author_facet | Dongjin Sun Yifan Luo Marc Debliquy Chao Zhang |
| author_sort | Dongjin Sun |
| collection | DOAJ |
| description | Owing to the excellent sensitivity to gases, metal-oxide semiconductors (MOS) are widely used as materials for gas sensing. Usually, MOS gas sensors have some common shortages, such as relatively poor selectivity and high operating temperature. Graphene has drawn much attention as a gas sensing material in recent years because it can even work at room temperature, which reduces power consumption. However, the low sensitivity and long recovery time of the graphene-based sensors limit its further development. The combination of metal-oxide semiconductors and graphene may significantly improve the sensing performance, especially the selectivity and response/recovery rate at room temperature. In this review, we have summarized the latest progress of graphene/metal-oxide gas sensors for the detection of NO2, NH3, CO and some volatile organic compounds (VOCs) at room temperature. Meanwhile, the sensing performance and sensing mechanism of the sensors are discussed. The improved experimental schemes are raised and the critical research directions of graphene/metal-oxide sensors in the future are proposed. |
| first_indexed | 2024-12-14T13:02:23Z |
| format | Article |
| id | doaj.art-6c30d62094ce45cdbb2662eb8701cc92 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-14T13:02:23Z |
| publishDate | 2018-11-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-6c30d62094ce45cdbb2662eb8701cc922022-12-21T23:00:25ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862018-11-01912832284410.3762/bjnano.9.2642190-4286-9-264Graphene-enhanced metal oxide gas sensors at room temperature: a reviewDongjin Sun0Yifan Luo1Marc Debliquy2Chao Zhang3College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaDepartment of Materials Science, University of Mons, 7000 Mons, BelgiumCollege of Mechanical Engineering, Yangzhou University, Yangzhou 225127, ChinaOwing to the excellent sensitivity to gases, metal-oxide semiconductors (MOS) are widely used as materials for gas sensing. Usually, MOS gas sensors have some common shortages, such as relatively poor selectivity and high operating temperature. Graphene has drawn much attention as a gas sensing material in recent years because it can even work at room temperature, which reduces power consumption. However, the low sensitivity and long recovery time of the graphene-based sensors limit its further development. The combination of metal-oxide semiconductors and graphene may significantly improve the sensing performance, especially the selectivity and response/recovery rate at room temperature. In this review, we have summarized the latest progress of graphene/metal-oxide gas sensors for the detection of NO2, NH3, CO and some volatile organic compounds (VOCs) at room temperature. Meanwhile, the sensing performance and sensing mechanism of the sensors are discussed. The improved experimental schemes are raised and the critical research directions of graphene/metal-oxide sensors in the future are proposed.https://doi.org/10.3762/bjnano.9.264gas sensorgraphenemetal oxidenitrogen dioxide (NO2)room temperature |
| spellingShingle | Dongjin Sun Yifan Luo Marc Debliquy Chao Zhang Graphene-enhanced metal oxide gas sensors at room temperature: a review Beilstein Journal of Nanotechnology gas sensor graphene metal oxide nitrogen dioxide (NO2) room temperature |
| title | Graphene-enhanced metal oxide gas sensors at room temperature: a review |
| title_full | Graphene-enhanced metal oxide gas sensors at room temperature: a review |
| title_fullStr | Graphene-enhanced metal oxide gas sensors at room temperature: a review |
| title_full_unstemmed | Graphene-enhanced metal oxide gas sensors at room temperature: a review |
| title_short | Graphene-enhanced metal oxide gas sensors at room temperature: a review |
| title_sort | graphene enhanced metal oxide gas sensors at room temperature a review |
| topic | gas sensor graphene metal oxide nitrogen dioxide (NO2) room temperature |
| url | https://doi.org/10.3762/bjnano.9.264 |
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