Recent advances in 2D/nanostructured metal sulfide-based gas sensors: mechanisms, applications, and perspectives,Journal of Materials Chemistry A

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Recent advances in 2D/nanostructured metal sulfide-based gas sensors: mechanisms, applications, and perspectives
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-10-30 , DOI: 10.1039/d0ta08190f
Hongyu Tang _{1,

2,

3,

4,

5} , Leandro Nicolas Sacco _{1,

2,

3,

4,

5} , Sten Vollebregt _{1,

2,

3,

4,

5} , Huaiyu Ye _{6,

7,

8,

9,

10} , Xuejun Fan _{11,

12,

13} , Guoqi Zhang _{1,

2,

3,

4,

5}

Affiliation

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, NO_x, CH₄, H₂, and humidity). Finally, a strengths–weaknesses–opportunities–threats (SWOT) analysis is proposed for future development and commercialization in this field.

中文翻译：

二维/纳米结构的基于金属硫化物的气体传感器的最新进展：机理，应用和前景

二维和纳米结构的金属硫化物材料因其具有易于调节的电子，光学，物理和化学特性的材料的丰富选择，在多种气体传感应用的发展中很有希望。这些应用对于环境监测和呼吸分析中的气体传感特别有吸引力。本文对基于二维和纳米结构的金属硫化物材料的各种气体传感器进行了系统的描述。首先，介绍了金属硫化物的晶体结构。其次，基于密度泛函理论分析，总结了不同金属硫化物的气敏机理。基于金属硫化物的器件的各种气敏概念，包括化学电阻器，功能化的金属硫化物，肖特基结，异质结，场效应晶体管，比较并介绍了光学和表面声波传感器。然后讨论了基于金属硫化物的传感器在不同气体分子（包括挥发性有机化合物）中的广泛应用（即丙酮，苯，甲烷，甲醛，乙醇和液化石油气）和无机气体（即CO ₂，O ₂，NH ₃，H ₂ S，SO ₂，NO _x，CH ₄，H ₂和湿度）。最后，提出了优势－劣势－机会－威胁（SWOT）分析，以供该领域的未来发展和商业化。

更新日期：2020-11-22

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