| Title: | Graphene-enhanced metal oxide gas sensors at room temperature: a review |
| Author(s): | Sun D; Luo Y; Debliquy M; Zhang C; |
| Address: | "College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China. Department of Materials Science, University of Mons, 7000 Mons, Belgium" |
| ISSN/ISBN: | 2190-4286 (Print) 2190-4286 (Electronic) 2190-4286 (Linking) |
| Abstract: | "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 NO(2), NH(3), 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" |
| Keywords: | gas sensor graphene metal oxide nitrogen dioxide (NO2) room temperature; |
| Notes: | "PubMed-not-MEDLINESun, Dongjin Luo, Yifan Debliquy, Marc Zhang, Chao eng Review Germany 2018/12/01 Beilstein J Nanotechnol. 2018 Nov 9; 9:2832-2844. doi: 10.3762/bjnano.9.264. eCollection 2018" |
