1. Architectures of MoS2/SnO2 nanoflowers for NO2 gas detection.
- Author
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Shahid, Arslan, Hussain, Shahid, Liaqat, Muhammad Javed, Shah, Sufaid, Yusuf, Kareem, Manavalan, Rajesh Kumar, Zhang, Xiangzhao, Liu, Guiwu, and Qiao, Guanjun
- Subjects
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STANNIC oxide , *X-ray photoelectron spectroscopy , *TRANSMISSION electron microscopy , *GAS detectors , *SCANNING electron microscopy - Abstract
In this research, a two-step hydrothermal technique is used to fabricate a NO 2 gas sensor based on MoS 2 nanoflowers with SnO 2 nanoparticles. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) , were used to determine the morphologies, nanostructures, and compositions of the materials. The nanocomposites consisting of MoS 2 /SnO 2 demonstrated a remarkable sensing response (38.6) towards 100 ppm of NO 2. Moreover, the nanocomposites showed a rapid response and recovery time (42/147 S) when exposed to 100 ppm at temperature (250 °C). The MoS 2 /SnO 2 nanocomposites demonstrated exceptional selectivity to NO 2 against CO, NH 3 , and H 2 S, as well as demonstrated good repeatability. The significant gas detection characteristics could potentially be controlled by the distinctive structures of thin layers assembled into flower-like formations of two-dimensional MoS 2. The multi-joint nanostructures promote the process of transferring the electrical charge of the carrier and the response to MoS 2 /SnO 2 and NO 2. The fabricated sensors are considered as potential candidates for the commercial in the nitrogen dioxide gas-sensing applications. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2024
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