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A self-powered hydrogen leakage sensor based on impedance adjustable windmill-like triboelectric nanogenerator
Nano Energy ( IF 16.8 ) Pub Date : 2021-08-27 , DOI: 10.1016/j.nanoen.2021.106453
Jinxing Jiang 1 , Yi Zhang 1 , Qingqing Shen 1 , Qianqian Zhu 1 , Xiangchao Ge 1 , Yina Liu 2 , Zhen Wen 1 , Xuhui Sun 1
Affiliation  

With the development of fuel cell vehicles, the hydrogen leakage detector is urgent to satisfy the safety requirements of the vehicles with low power consumption. In this work, a self-powered hydrogen leakage detector based on impedance adjustable windmill-like triboelectric nanogenerator (WL-TENG) has been demonstrated. It could harvest wind energy during the driving of hydrogen fuel vehicle to power the whole sensing system. The inherent impedance and matching region of WL-TENG can be tuned effectively by adjusting the center angle of the windmill plate. The resistance of the Pd/ZnO nanorods based hydrogen sensor changes from 300 kΩ to 60 kΩ under pure air atmosphere to 1000 ppm H2. Then, a matching WL-TENG with 3° center angle was series connected to H2 sensor to construct the self-powered H2 sensing system. Finally, by introducing 150 kΩ divider constant resistor, the voltage across it increases from ~15 V to ~60 V with the H2 concentration increasing from 0 to 1000 ppm. The output voltage of WL-TENG varies with the variable working states of the gas sensor and then directly reflects on the on/off status of the LEDs parallel connected to the divider resistor. This work contributes to the development of impedance matching theory of TENG and further expand its application on self-powered sensing system.



中文翻译:

基于阻抗可调风车式摩擦纳米发电机的自供电氢泄漏传感器

随着燃料电池汽车的发展,氢泄漏检测仪迫切需要满足低功耗汽车的安全要求。在这项工作中,已经展示了一种基于阻抗可调风车状摩擦纳米发电机(WL-TENG)的自供电氢泄漏检测器。它可以在氢燃料汽车行驶过程中收集风能,为整个传感系统提供动力。WL-TENG 的固有阻抗和匹配区域可以通过调整风车板的中心角来有效地调整。基于 Pd/ZnO 纳米棒的氢传感器的电阻在纯空气环境下从 300 kΩ 变为 60 kΩ 到 1000 ppm H 2。然后,将中心角为 3° 的匹配 WL-TENG 串联连接到 H 2传感器构建自供电的H 2传感系统。最后,通过引入 150 kΩ 分压器恒定电阻器,其两端的电压从 ~15 V 增加到 ~60 V,H 2浓度从 0 增加到 1000 ppm。WL-TENG 的输出电压随气体传感器的不同工作状态而变化,然后直接反映在分压电阻上并联的 LED 的开/关状态。这项工作有助于 TENG 阻抗匹配理论的发展,并进一步扩展其在自供电传感系统中的应用。

更新日期:2021-09-02
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