Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO 3 -PdPt-Pt Nanocomposite Films.
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| Title: | Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO 3 -PdPt-Pt Nanocomposite Films. |
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| Authors: | Dai, Jixiang1 (AUTHOR), Chen, Zhangning1,2 (AUTHOR), Yang, Rundong1,3 (AUTHOR) yangrundong@whut.edu.cn, Wu, Zhouyang1 (AUTHOR), Tang, Zhengan1,2 (AUTHOR), Hu, Wenbin1,3 (AUTHOR) wenbin_hu@whut.edu.cn, Cheng, Cheng1,2 (AUTHOR), Wang, Xuewen3 (AUTHOR), Yang, Minghong1 (AUTHOR) |
| Source: | Nanomaterials (2079-4991). Jun2025, Vol. 15 Issue 11, p836. 11p. |
| Subjects: | Single-mode optical fibers, Hydrogen as fuel, Light sources, Optical fibers, Semiconductor lasers, Hydrogen detectors, Optical fiber detectors |
| Abstract: | Quickly detecting hydrogen leakage is crucial to provide early warning for taking emergency measures to avoid personnel casualties and explosion accidents in hydrogen energy fields. Here, a compact optical fiber hydrogen sensing system with high sensitivity and quick response rate is proposed in this work. A laser diode (LD) and two photodetectors (PD) are employed as light source and optical signal transformation devices, respectively. This sensing system employs single-mode optical fiber deposited with WO3-PdPt-Pt nanocomposite film system as sensing element. Under irrigating power of 6 mW, the sensing probe exhibits an ultra-fast response to hydrogen concentrations of 4000 ppm and 10,000 ppm, with response times of 0.44 s and 0.34 s, respectively. In addition, detection limit of 3 ppm can be achieved by using this sensing system. The sensor also shows good repeatability during hydrogen exposure of 3~10,000 ppm, demonstrating its great potential application for hydrogen leakage in hydrogen energy facilities. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Quickly detecting hydrogen leakage is crucial to provide early warning for taking emergency measures to avoid personnel casualties and explosion accidents in hydrogen energy fields. Here, a compact optical fiber hydrogen sensing system with high sensitivity and quick response rate is proposed in this work. A laser diode (LD) and two photodetectors (PD) are employed as light source and optical signal transformation devices, respectively. This sensing system employs single-mode optical fiber deposited with WO3-PdPt-Pt nanocomposite film system as sensing element. Under irrigating power of 6 mW, the sensing probe exhibits an ultra-fast response to hydrogen concentrations of 4000 ppm and 10,000 ppm, with response times of 0.44 s and 0.34 s, respectively. In addition, detection limit of 3 ppm can be achieved by using this sensing system. The sensor also shows good repeatability during hydrogen exposure of 3~10,000 ppm, demonstrating its great potential application for hydrogen leakage in hydrogen energy facilities. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 20794991 |
| DOI: | 10.3390/nano15110836 |
