scholarly journals Two-Dimensional NbS2 Gas Sensors for Selective and Reversible NO2 Detection at Room Temperature

ACS Sensors ◽  
2019 ◽  
Vol 4 (9) ◽  
pp. 2395-2402 ◽  
Author(s):  
Yeonhoo Kim ◽  
Ki Chang Kwon ◽  
Sungwoo Kang ◽  
Changyeon Kim ◽  
Tae Hoon Kim ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
Two Dimensional ◽  
No2 Detection

scholarly journals Gas Sensors Based on Mechanically Exfoliated MoS2 Nanosheets for Room-Temperature NO2 Detection

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2123 ◽  
Author(s):  
Wenli Li ◽  
Yong Zhang ◽  
Xia Long ◽  
Juexian Cao ◽  
Xin Xin ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Density Functional ◽  
Room Temperature ◽  
Mos2 Nanosheets ◽  
Mechanical Exfoliation ◽  
High Responsivity ◽  
Recovery Behavior ◽  
No2 Gas Sensors ◽  
No2 Detection

The unique properties of MoS2 nanosheets make them a promising candidate for high-performance room temperature gas detection. Herein, few-layer MoS2 nanosheets (FLMN) prepared via mechanical exfoliation are coated on a substrate with interdigital electrodes for room-temperature NO2 detection. Interestingly, compared with other NO2 gas sensors based on MoS2, FLMN gas sensors exhibit high responsivity for room-temperature NO2 detection, and NO2 is easily desorbed from the sensor surface with an ultrafast recovery behavior, with recovery times around 2 s. The high responsivity is related to the fact that the adsorbed NO2 can affect the electron states within the entire material, which is attributed to the very small thickness of the MoS2 nanosheets. First-principles calculations were carried out based on the density functional theory (DFT) to verify that the ultrafast recovery behavior arises from the weak van der Waals binding between NO2 and the MoS2 surface. Our work suggests that FLMN prepared via mechanical exfoliation have a great potential for fabricating high-performance NO2 gas sensors.

MXene/WS2 2D/2D hybrid films for visible-light-activated NO2 sensing at room temperature

2021 ◽  
Author(s):  
Yi Xia ◽  
Sufang He ◽  
Mingjun Wang ◽  
Liexing Zhou ◽  
Jing Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Sensors ◽  
Room Temperature ◽  
2D Materials ◽  
Two Dimensional ◽  
Hybrid Films

OPTOELECTRONIC GAS SENSORS BASED ON TWO-DIMENSIONAL (2D) MATERIALS ARE TOUTED AS POTENTIAL CANDIDATES FOR NO2 SENSING AT ROOM TEMPERATURE. HOWEVER, MOST OF THE DEVELOPED OPTOELECTRONIC SENSORS TO DATE ARE CONFINED...

Two-dimensional MoSe2 nanosheets via liquid-phase exfoliation for high-performance room temperature NO2 gas sensors

2019 ◽  
Vol 30 (44) ◽  
pp. 445503 ◽  
Author(s):  
Xi Chen ◽  
Xinwei Chen ◽  
Yutong Han ◽  
Chen Su ◽  
Min Zeng ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Two Dimensional ◽  
Liquid Phase Exfoliation ◽  
No2 Gas Sensors

Carbon-doping-induced energy-band modification and vacancies in SnS2 nanosheets for room-temperature ppb-level NO2 detection

2021 ◽  
Author(s):  
Ruozhen Wu ◽  
Juanyuan Hao ◽  
Tingting Wang ◽  
Shengliang Zheng ◽  
You Wang
Keyword(s):  
Synergistic Effect ◽  
Gas Sensors ◽  
Energy Band ◽  
High Performance ◽  
Room Temperature ◽  
Carbon Doping ◽  
No2 Detection

Carbon-doping mediated synergistic effect of energy-band modification and vacancy provides a new solution for developing high-performance LMDs-based gas sensors.

2D/2D/2D Ti3C2Tx@TiO2@MoS2 Heterostructure as Ultrafast and High-sensitivity NO2 Gas Sensor at Room-temperature

2022 ◽  
Author(s):  
Zhuo Liu ◽  
He Lv ◽  
Ying Xie ◽  
Jue Wang ◽  
Jiahui Fan ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Gas Sensors ◽  
Room Temperature ◽  
Gas Sensing ◽  
2D Materials ◽  
High Sensitivity ◽  
Two Dimensional ◽  
No2 Gas Sensor ◽  
2D Structure ◽  
Sensing Application

The very diverse two-dimensional (2D) materials have bloomed in NO2 gas sensing application that provide new opportunities and challenges in function oriented gas sensors. In this work, a 2D/2D/2D structure...

Two-Dimensional Fractal Structures of Metal Oxides Synthesized at Room Temperature

2008 ◽  
Vol 47-50 ◽  
pp. 1177-1180 ◽  
Author(s):  
Lan Chen ◽  
Ju Xu ◽  
Michael A. Morris
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
Surface Coverage ◽  
High Surface ◽  
Two Dimensional ◽  
Colloidal Solutions ◽  
Fractal Structures ◽  
Potential Applications ◽  
Very High ◽  
Catalyst Carriers

2D metal oxide fractal structures with different appearance and composition are successfully grown on the silicon (100) substrates from their colloidal solutions at room temperature. These films display very high surface coverage on the substrates and abundant structures. The results demonstrate the appearances and dimensions of these structures are dependent on the properties and composition of their constituent particles and the substrates. This work may have potential applications in the fabrication of gas sensors, photon-receivers and catalyst carriers which are not easy made by other methods at RT.

Preparation of two-dimensional molybdenum disulfide for NO2 detection at room temperature

2020 ◽  
Vol 31 (8) ◽  
pp. 2099-2102
Author(s):  
Xin Yu ◽  
Ding Wang ◽  
Yuqiu Wang ◽  
Ji Yan ◽  
Xianying Wang
Keyword(s):  
Molybdenum Disulfide ◽  
Room Temperature ◽  
Two Dimensional ◽  
No2 Detection
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