Zhang Xuhui, Guo Liang, Wei Xinran, Liu Qiang, Liang Yuzhang, Wang Junsheng, Peng Wei
Liaoning Key Laboratory of Marine Sensing and Intelligent Detection, Dalian Maritime University, Dalian 116026, China.
Information Science and Technology College, Dalian Maritime University, Dalian 116026, China.
Nanomaterials (Basel). 2025 Mar 13;15(6):440. doi: 10.3390/nano15060440.
In the current energy transition procedure, the application prospect of hydrogen as a clean energy material has attracted much attention. However, the widespread use of hydrogen is also accompanied by safety hazards, and how to detect hydrogen safely and efficiently has become a research focus. In this paper, we propose a fiber-optic hydrogen sensor based on the thermo-optic effect and nanomaterials, which combines the unique advantages of fiber-optic grating and platinum-loaded tungsten trioxide and is capable of detecting hydrogen concentration with high sensitivity. The principle of this sensor is to absorb hydrogen molecules by nanomaterials and trigger the exothermic effect, which leads to grating period change and refractive index change in the fiber, thus modulating the resonant wavelength of grating. By monitoring the wavelength drift in real time, the hydrogen concentration can be accurately detected. The experimental results show that the sensor can provide high sensitivity, fast response, wide detection range, and miniaturized design, which are suitable for hydrogen detection in complex environments. In addition, its dual-channel operational method further improves detection accuracy and environmental adaptability. This work provides technical support for safe hydrogen detection, which is suitable for hydrogen production, storage, industrial safety and environmental monitoring.
在当前的能源转型过程中，氢作为一种清洁能源材料的应用前景备受关注。然而，氢的广泛使用也伴随着安全隐患，如何安全、高效地检测氢气已成为研究热点。本文提出了一种基于热光效应和纳米材料的光纤氢传感器，该传感器结合了光纤光栅和负载铂的三氧化钨的独特优势，能够高灵敏度地检测氢气浓度。该传感器的原理是纳米材料吸收氢分子并引发放热效应，导致光纤中的光栅周期变化和折射率变化，从而调制光栅的谐振波长。通过实时监测波长漂移，可以准确检测氢气浓度。实验结果表明，该传感器具有高灵敏度、快速响应、宽检测范围和小型化设计等特点，适用于复杂环境中的氢气检测。此外，其双通道操作方法进一步提高了检测精度和环境适应性。这项工作为安全氢气检测提供了技术支持，适用于氢气生产、储存、工业安全和环境监测。
