Journal
IEEE TRANSACTIONS ON NANOTECHNOLOGY
Volume 20, Issue -, Pages 177-184Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNANO.2021.3059622
Keywords
MoS2 nanosheets; gas sensor; formic acid; response time
Categories
Funding
- NationalNatural Science Foundation of China [62033002, 61833006, 62071112, 61973058]
- 111 Project [B16009]
- Fundamental Research Funds for the Central Universities in China [N180408018, N2004019, N2004028]
- Liao Ning RevitalizationTalents Program [XLYC1807198]
- Liaoning Province Natural Science Foundation [2020-KF-11-04]
- Hebei Natural Science Foundation [F2020501040]
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In this study, dispersed MoS2 nanosheets were prepared uniformly using water bath ultrasonic stripping method, and a sensor for detecting formic acid gas was successfully developed. The sensor showed high response, selectivity, repeatability, and stability with a linear relationship between sensor resistance and gas concentration.
In this study, we prepare dispersed MoS2 nanosheets by water bath ultrasonic stripping method uniformly. The MoS2 nanosheets are characterized by SEM, TEM and XRD, and then the gas formic acid is detected in detail. The experimental results show that the sensor patterned with MoS2 nanosheets has high response to formic acid gas with the response time of 11s, and the recovery time of 17s. The sensor exhibits excellent selectivity, repeatability and stability under a linear relationship between the resistance of the sensor and the gas concentration.
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