Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches
The current solicitude in hydrogen production and its utilization as a greenhouse-neutral energy vector pushed deep interest in developing new and reliable systems intended for its detection. Most sensors available on the market offer reliable performance; however, their limitations, such as restric...
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MDPI AG
2025-07-01
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| Online Access: | https://www.mdpi.com/1424-8220/25/13/4190 |
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| author | Fabio Melison Lorenzo Cocola Luca Poletto |
| author_facet | Fabio Melison Lorenzo Cocola Luca Poletto |
| author_sort | Fabio Melison |
| collection | DOAJ |
| description | The current solicitude in hydrogen production and its utilization as a greenhouse-neutral energy vector pushed deep interest in developing new and reliable systems intended for its detection. Most sensors available on the market offer reliable performance; however, their limitations, such as restricted dynamic range, hysteresis, reliance on consumables, transducer–sample interaction, and sample dispersion into the environment, are not easily overcome. In this paper, a non-dispersive Raman effect-based system is presented and compared with its dispersive alternative. This approach intrinsically guarantees no sample dispersion or preparation, as no direct contact is required between the sample and the transducer. Moreover, the technique does not suffer from hysteresis and recovering time issues. The results, evaluated in terms of sample pressures and camera integration time, demonstrate promising signal-to-noise ratio (SNR) and limit of detection (LOD) values, indicating strong potential for direct field application. |
| format | Article |
| id | doaj-art-d4dd347f5f394874a126e699a3f4a76c |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-d4dd347f5f394874a126e699a3f4a76c2025-08-20T03:17:52ZengMDPI AGSensors1424-82202025-07-012513419010.3390/s25134190Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive ApproachesFabio Melison0Lorenzo Cocola1Luca Poletto2National Research Council of Italy, Institute for Photonics and Nanotechnologies, CNR-IFN, Via Trasea 7, 35131 Padova, ItalyNational Research Council of Italy, Institute for Photonics and Nanotechnologies, CNR-IFN, Via Trasea 7, 35131 Padova, ItalyNational Research Council of Italy, Institute for Photonics and Nanotechnologies, CNR-IFN, Via Trasea 7, 35131 Padova, ItalyThe current solicitude in hydrogen production and its utilization as a greenhouse-neutral energy vector pushed deep interest in developing new and reliable systems intended for its detection. Most sensors available on the market offer reliable performance; however, their limitations, such as restricted dynamic range, hysteresis, reliance on consumables, transducer–sample interaction, and sample dispersion into the environment, are not easily overcome. In this paper, a non-dispersive Raman effect-based system is presented and compared with its dispersive alternative. This approach intrinsically guarantees no sample dispersion or preparation, as no direct contact is required between the sample and the transducer. Moreover, the technique does not suffer from hysteresis and recovering time issues. The results, evaluated in terms of sample pressures and camera integration time, demonstrate promising signal-to-noise ratio (SNR) and limit of detection (LOD) values, indicating strong potential for direct field application.https://www.mdpi.com/1424-8220/25/13/4190Raman spectroscopyhydrogen detectiongas sensingoptical sensorfield-deployable instrumentationnon-dispersive Raman |
| spellingShingle | Fabio Melison Lorenzo Cocola Luca Poletto Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches Sensors Raman spectroscopy hydrogen detection gas sensing optical sensor field-deployable instrumentation non-dispersive Raman |
| title | Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches |
| title_full | Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches |
| title_fullStr | Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches |
| title_full_unstemmed | Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches |
| title_short | Raman Gas Sensor for Hydrogen Detection via Non-Dispersive and Dispersive Approaches |
| title_sort | raman gas sensor for hydrogen detection via non dispersive and dispersive approaches |
| topic | Raman spectroscopy hydrogen detection gas sensing optical sensor field-deployable instrumentation non-dispersive Raman |
| url | https://www.mdpi.com/1424-8220/25/13/4190 |
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