A fiber-optic formic acid gas sensor based on molybdenum disulfide nanosheets and chitosan works at room temperature
J. Li; G. L. Chen and F. L. Meng
刊名Optics and Laser Technology
2022
卷号150页码:9
ISSN号0030-3992
DOI10.1016/j.optlastec.2022.107975
英文摘要In this paper, two optical fiber gas sensors were successfully developed, and the detection of formic acid gas was realized at room temperature. The limit of detection for the chitosan material modified probe for formic acid can reach 1 ppm. The combination of molybdenum disulfide (MoS2) nanosheets and chitosan effectively improves sensor response and recovery time. The gas-sensitivity characteristics of the two sensors have been studied, compared and discussed respectively, and the good selectivity and repeatability have been verified by experi-ments. By combining the gas-sensitive material with the optical fiber structure, this paper verifies and broadens the method for enhancing the sensitivity of the formic acid gas sensor and the realization of concentration detection at room temperature. Because it breaks through the limitation of high-temperature catalytic conditions, the probe is expected to be used for formic acid gas detection, and can be extended to the room temperature detection of other gases under harsh environmental conditions such as strong electromagnetic interference.
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语种英语
内容类型期刊论文
源URL[http://ir.ciomp.ac.cn/handle/181722/66671]  
专题中国科学院长春光学精密机械与物理研究所
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J. Li,G. L. Chen and F. L. Meng. A fiber-optic formic acid gas sensor based on molybdenum disulfide nanosheets and chitosan works at room temperature[J]. Optics and Laser Technology,2022,150:9.
APA J. Li,&G. L. Chen and F. L. Meng.(2022).A fiber-optic formic acid gas sensor based on molybdenum disulfide nanosheets and chitosan works at room temperature.Optics and Laser Technology,150,9.
MLA J. Li,et al."A fiber-optic formic acid gas sensor based on molybdenum disulfide nanosheets and chitosan works at room temperature".Optics and Laser Technology 150(2022):9.
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