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1.中北大学 微纳器件与系统教育部重点实验室,山西 太原 030051
2.中北大学 省部共建动态测试技术国家重点实验室,山西 太原 030051
张小莉(1998-), 女, 硕士生, 主要从事氢致变色传感器的研制及性能测试的研究。
田佳蔚(1993-), 女, 讲师, 博士, 主要从事气体传感器及测量系统, 微/纳机电系统(MEMS/NEMS), 电子薄膜与集成器件的制造及其应用的研究。E⁃mail: 20230060@nuc.edu.cn。
谭秋林(1979-), 男, 教授, 博士, 主要从事超常规传感技术及仪器方面的研究。E⁃mail: tanqiulin@nuc.edu.cn。
收稿:2025-02-20,
纸质出版:2025-06-30
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张小莉, 田佳蔚, 王宁, 等. 基于Pd/WO3的氢致变色传感器制备及其性能研究[J]. 中北大学学报(自然科学版), 2025, 46(3): 389-395.
ZHANG Xiaoli, TIAN Jiawei, WANG Ning, et al. Preparation and performance study of Pd/WO3 based hydrogen gasochromic sensor[J]. Journal of North University of China(Natural Science Edition), 2025, 46(3): 389-395.
张小莉, 田佳蔚, 王宁, 等. 基于Pd/WO3的氢致变色传感器制备及其性能研究[J]. 中北大学学报(自然科学版), 2025, 46(3): 389-395. DOI: 10.62756/jnuc.issn.1673-3193.2025.02.0010.
ZHANG Xiaoli, TIAN Jiawei, WANG Ning, et al. Preparation and performance study of Pd/WO3 based hydrogen gasochromic sensor[J]. Journal of North University of China(Natural Science Edition), 2025, 46(3): 389-395. DOI: 10.62756/jnuc.issn.1673-3193.2025.02.0010.
氢能作为最有发展前景的清洁能源在生产生活中越来越重要, 有望替代传统的化石能源。然而氢气(Hydrogen, H
2
)易燃易爆易泄露, 使得H
2
传感器的开发和利用越来越重要。氢致变色传感器在H
2
中呈现出可直接被肉眼观察到的颜色变化, 无需额外电学系统, 因此在H
2
传感器中脱颖而出。同时该类传感器的工作温度低, 降低了因高温带来的H
2
爆炸风险。采用阳极氧化法和紫外还原法制备了Pd/WO
3
氢致变色材料, 然后将氢致变色材料滴涂至柔性衬底上得到氢致变色传感器, 该传感器具有出色的H
2
检测性能。首先, 传感器的着色速度快且着色明显, 95 s内色差可达51; 其次, 传感器的工作温度为室温, 大大降低了H
2
爆炸的风险; 最后, 传感器的检测下限较低, 其在体积分数为0.04% H
2
下的颜色变化仍然可以被肉眼所分辨。另外, 该传感器使用的柔性衬底使其能贴合于各种不规则的潜在泄漏点上, 应用更加广泛。
Hydrogen energy, as the most promising clean energy source, is increasingly important in both contemporary industrial and daily life, and it is expected to replace traditional fossil energy. However, the flammable and explosive nature of hydrogen make the development and utilization of hydrogen sensors increasingl important. Among these sensors, hydrogen gasochromic sensors stand out which exhibit identifiable color changes in hydrogen by the naked eye without the need for additional electrical systems. Meanwhile, the low operating temperature of this sensor reduces the risk of hydrogen explosions due to high temperatures. In this paper, Pd/WO
3
gasochromic material was prepared by anodic oxidation and ultraviolet reduction. The hydrochromic material was drop-coated onto a flexible substrate to obtain a hydrochromic sensor, which shows excellent hydrogen detection capabilities. Firstly, the sensor exhibits a rapid and obvious color change, with a color difference of up to 51 within 95 seconds. Secondly, the sensor operates at room temperature, which significantly reduces the risk of hydrogen explosions. Finally, the sensor has a low detection limit, and it can still exhibit a visible color change at hydrogen concentrations as low as volume fraction of 0.04%. In addition, the use of a flexible substrate allows the sensor to be adapted to various irregular potential leakage points, making it a wider range of applications.
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