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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.
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]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO 3 -PdPt-Pt Nanocomposite Films.
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  Data: <searchLink fieldCode="AR" term="%22Dai%2C+Jixiang%22">Dai, Jixiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Zhangning%22">Chen, Zhangning</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Rundong%22">Yang, Rundong</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> yangrundong@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Zhouyang%22">Wu, Zhouyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tang%2C+Zhengan%22">Tang, Zhengan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hu%2C+Wenbin%22">Hu, Wenbin</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> wenbin_hu@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Cheng%22">Cheng, Cheng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xuewen%22">Wang, Xuewen</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Minghong%22">Yang, Minghong</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Jun2025, Vol. 15 Issue 11, p836. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Single-mode+optical+fibers%22">Single-mode optical fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+as+fuel%22">Hydrogen as fuel</searchLink><br /><searchLink fieldCode="DE" term="%22Light+sources%22">Light sources</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fibers%22">Optical fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Semiconductor+lasers%22">Semiconductor lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+detectors%22">Hydrogen detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fiber+detectors%22">Optical fiber detectors</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: 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]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.3390/nano15110836
    Languages:
      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 836
    Subjects:
      – SubjectFull: Single-mode optical fibers
        Type: general
      – SubjectFull: Hydrogen as fuel
        Type: general
      – SubjectFull: Light sources
        Type: general
      – SubjectFull: Optical fibers
        Type: general
      – SubjectFull: Semiconductor lasers
        Type: general
      – SubjectFull: Hydrogen detectors
        Type: general
      – SubjectFull: Optical fiber detectors
        Type: general
    Titles:
      – TitleFull: Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO 3 -PdPt-Pt Nanocomposite Films.
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            NameFull: Dai, Jixiang
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            NameFull: Chen, Zhangning
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            NameFull: Yang, Rundong
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            NameFull: Wu, Zhouyang
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            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
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