Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films
In this paper, WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt nanocomposite films were deposited on a single mode fiber as the hydrogen sensing material, which changes its reflectivity under different hydrogen concentration. The reflectivity variation was probed and converted to an elect...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/1/128 |
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| author | Jixiang Dai Yi Li Hongbo Ruan Zhuang Ye Nianyao Chai Xuewen Wang Shuchang Qiu Wei Bai Minghong Yang |
| author_facet | Jixiang Dai Yi Li Hongbo Ruan Zhuang Ye Nianyao Chai Xuewen Wang Shuchang Qiu Wei Bai Minghong Yang |
| author_sort | Jixiang Dai |
| collection | DOAJ |
| description | In this paper, WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt nanocomposite films were deposited on a single mode fiber as the hydrogen sensing material, which changes its reflectivity under different hydrogen concentration. The reflectivity variation was probed and converted to an electric signal by a pair of balanced InGaAs photoelectric detectors. In addition, the performance of the WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt composite film was investigated under different optical powers, and the irrigating power was optimized at 5 mW. With the irrigation of this optical power, the hydrogen sensitive film exhibits quick response toward 100 ppm hydrogen in air atmosphere at a room temperature of 25 °C. The experimental results demonstrate a high resolution at 5 parts per million (ppm) within a wide range from 100 to 5000 ppm in air. This simple and compact sensing system can detect hydrogen concentrations far below the explosion limit and provide early alert for hydrogen leakage, showing great potential in hydrogen-related applications. |
| first_indexed | 2024-03-09T05:40:16Z |
| format | Article |
| id | doaj.art-81ab04e4254a4a58a9f91db2c6144ae2 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T05:40:16Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-81ab04e4254a4a58a9f91db2c6144ae22023-12-03T12:25:50ZengMDPI AGNanomaterials2079-49912021-01-0111112810.3390/nano11010128Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite FilmsJixiang Dai0Yi Li1Hongbo Ruan2Zhuang Ye3Nianyao Chai4Xuewen Wang5Shuchang Qiu6Wei Bai7Minghong Yang8National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaFoshan Xianhu Laboratory of the Advanced Energy Science and Technology, Guangdong Laboratory, Foshan 528216, ChinaFoshan Xianhu Laboratory of the Advanced Energy Science and Technology, Guangdong Laboratory, Foshan 528216, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaNational Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, ChinaIn this paper, WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt nanocomposite films were deposited on a single mode fiber as the hydrogen sensing material, which changes its reflectivity under different hydrogen concentration. The reflectivity variation was probed and converted to an electric signal by a pair of balanced InGaAs photoelectric detectors. In addition, the performance of the WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt composite film was investigated under different optical powers, and the irrigating power was optimized at 5 mW. With the irrigation of this optical power, the hydrogen sensitive film exhibits quick response toward 100 ppm hydrogen in air atmosphere at a room temperature of 25 °C. The experimental results demonstrate a high resolution at 5 parts per million (ppm) within a wide range from 100 to 5000 ppm in air. This simple and compact sensing system can detect hydrogen concentrations far below the explosion limit and provide early alert for hydrogen leakage, showing great potential in hydrogen-related applications.https://www.mdpi.com/2079-4991/11/1/128WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt nanocomposite filmsgasochromic propertiesInGaAs photoelectric detectors |
| spellingShingle | Jixiang Dai Yi Li Hongbo Ruan Zhuang Ye Nianyao Chai Xuewen Wang Shuchang Qiu Wei Bai Minghong Yang Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films Nanomaterials WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt nanocomposite films gasochromic properties InGaAs photoelectric detectors |
| title | Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films |
| title_full | Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films |
| title_fullStr | Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films |
| title_full_unstemmed | Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films |
| title_short | Fiber Optical Hydrogen Sensor Based on WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt Nanocomposite Films |
| title_sort | fiber optical hydrogen sensor based on wo sub 3 sub pd sub 2 sub pt pt nanocomposite films |
| topic | WO<sub>3</sub>-Pd<sub>2</sub>Pt-Pt nanocomposite films gasochromic properties InGaAs photoelectric detectors |
| url | https://www.mdpi.com/2079-4991/11/1/128 |
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