| Autor: |
Wu, Rui, Chen, Weiwei, Liao, Shuxian, Yin, Jiayong, Yuan, Ziqing, Han, Haoran, Liao, Xiangyu, Zhang, Yong, Zhai, Yongbiao, Guo, Liangchao |
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| Zdroj: |
Applied Nanoscience; Sep2024, Vol. 14 Issue 9, p973-983, 11p |
| Abstrakt: |
High-performance and room-temperature gas sensors are ideal for industrial production and environmental detection. Enhancing gas-detection capability by the use of highly conductive MXene in conjunction with metal oxide materials is a potential approach. In this work, we have prepared a gas-sensing composite device based on SnO2/V2CTx nanocomposites, which can be used to detect the concentration of SO2 gas at room temperature (~ 20 ℃). This paper modified two-dimensional (2D) V2CTx MXene with SnO2 nanoparticles by electrostatic binding method to synthesize SnO2/V2CTx composite nanomaterials. The experimental results show that at room temperature, the addition of SnO2 nanoparticles can markedly improve the gas-sensing response (from 66 to 83%) characteristics of pure V2CTx to SO2. The gas sensitivity of SnO2/V2CTx MXene nanocomposites can reach 83%, and its response/recovery time is 98 s/81 s under 10 ppm SO2. The gas-sensing composite devices made of SnO2/V2CTx composite nanomaterials also show good selectivity and application prospects. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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