期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 423, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.127148
关键词
2D materials; Gas sensors; Adsorption
资金
- Harbin Institute of Technology, Harbin, China [AUGA5710000920]
This review systematically introduced the properties of elemental two-dimensional materials beyond graphene and their application in gas sensing. It was found that these materials are effective in detecting carbon-, nitrogen-, and sulfur-based gases, as well as organic vapors. However, the challenge lies in the instability of these materials under atmospheric conditions.
The intrinsic and electronic properties of elemental two-dimensional (2D) materials beyond graphene are first introduced in this review. Then the studies concerning the application of gas sensing using these 2D materials are comprehensively reviewed. On the whole, the carbon-, nitrogen-, and sulfur-based gases could be effectively detected by using most of them. For the sensing of organic vapors, the borophene, phosphorene, and arsenene may perform it well. Moreover, the G-series nerve agents might be efficiently monitored by the bismuthene. So far, there is still challenge on the material preparation due to the instability of these 2D materials under at-mosphere. The synthesis or growth of materials integrated with the technique of surface protection should be associated with the device fabrication to establish a complete process for particular application. This review provides a complete and methodical guideline for scientists to further research and develop the hazardous gas sensors of these 2D materials in order to achieve the purpose of environmental protection.
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