Recent advances in 2D/nanostructured metal sulfide-based gas sensors: mechanisms, applications, and perspectives
| Autor: | Hongyu Tang, Guoqi Zhang, Leandro Nicolas Sacco, Sten Vollebregt, Huaiyu Ye, Xuejun Fan |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Sulfide Renewable Energy Sustainability and the Environment Schottky diode Heterojunction Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Liquefied petroleum gas Methane 0104 chemical sciences chemistry.chemical_compound chemistry Breath gas analysis General Materials Science Surface acoustic wave sensor 0210 nano-technology NOx |
| Zdroj: | Journal of Materials Chemistry A. 8:24943-24976 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/d0ta08190f |
| Popis: | 2D and nanostructured metal sulfide materials are promising in the advancement of several gas sensing applications due to the abundant choice of materials with easily tunable electronic, optical, physical, and chemical properties. These applications are particularly attractive for gas sensing in environmental monitoring and breath analysis. This review gives a systematic description of various gas sensors based on 2D and nanostructured metal sulfide materials. Firstly, the crystal structures of metal sulfides are introduced. Secondly, the gas sensing mechanisms of different metal sulfides based on density functional theory analysis are summarised. Various gas-sensing concepts of metal sulfide-based devices, including chemiresistors, functionalized metal sulfides, Schottky junctions, heterojunctions, field-effect transistors, and optical and surface acoustic wave sensors, are compared and presented. It then discusses the extensive applications of metal sulfide-based sensors for different gas molecules, including volatile organic compounds (i.e., acetone, benzene, methane, formaldehyde, ethanol, and liquefied petroleum gas) and inorganic gas (i.e., CO2, O2, NH3, H2S, SO2, NOx, CH4, H2, and humidity). Finally, a strengths–weaknesses–opportunities–threats (SWOT) analysis is proposed for future development and commercialization in this field. |
| Databáze: | OpenAIRE |
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