Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films

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 thi...

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Main Authors: Jixiang Dai, Zhangning Chen, Rundong Yang, Zhouyang Wu, Zhengan Tang, Wenbin Hu, Cheng Cheng, Xuewen Wang, Minghong Yang
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Nanomaterials
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Online Access:https://www.mdpi.com/2079-4991/15/11/836
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author Jixiang Dai
Zhangning Chen
Rundong Yang
Zhouyang Wu
Zhengan Tang
Wenbin Hu
Cheng Cheng
Xuewen Wang
Minghong Yang
author_facet Jixiang Dai
Zhangning Chen
Rundong Yang
Zhouyang Wu
Zhengan Tang
Wenbin Hu
Cheng Cheng
Xuewen Wang
Minghong Yang
author_sort Jixiang Dai
collection DOAJ
description 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 WO<sub>3</sub>-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.
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id doaj-art-aedf2257a41348578fd918a6b3e746fe
institution OA Journals
issn 2079-4991
language English
publishDate 2025-05-01
publisher MDPI AG
record_format Article
series Nanomaterials
spelling doaj-art-aedf2257a41348578fd918a6b3e746fe2025-08-20T02:22:58ZengMDPI AGNanomaterials2079-49912025-05-01151183610.3390/nano15110836Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite FilmsJixiang Dai0Zhangning Chen1Rundong Yang2Zhouyang Wu3Zhengan Tang4Wenbin Hu5Cheng Cheng6Xuewen Wang7Minghong Yang8National Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaSanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572000, ChinaNational Engineering Research Center for Fiber Optic Sensing Technology and Networks, Wuhan University of Technology, Wuhan 430070, ChinaQuickly 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 WO<sub>3</sub>-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.https://www.mdpi.com/2079-4991/15/11/836hydrogen sensoroptical fiberWO<sub>3</sub>-PdPt-Pt nanocomposite filmlight intensity demodulation
spellingShingle Jixiang Dai
Zhangning Chen
Rundong Yang
Zhouyang Wu
Zhengan Tang
Wenbin Hu
Cheng Cheng
Xuewen Wang
Minghong Yang
Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films
Nanomaterials
hydrogen sensor
optical fiber
WO<sub>3</sub>-PdPt-Pt nanocomposite film
light intensity demodulation
title Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films
title_full Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films
title_fullStr Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films
title_full_unstemmed Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films
title_short Early Detection of Hydrogen Leakage Using Fiber Optic Hydrogen Sensor Based on WO<sub>3</sub>-PdPt-Pt Nanocomposite Films
title_sort early detection of hydrogen leakage using fiber optic hydrogen sensor based on wo sub 3 sub pdpt pt nanocomposite films
topic hydrogen sensor
optical fiber
WO<sub>3</sub>-PdPt-Pt nanocomposite film
light intensity demodulation
url https://www.mdpi.com/2079-4991/15/11/836
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