A self-powered hydrogen leakage sensor based on impedance adjustable windmill-like triboelectric nanogenerator

Jiang, Jinxing; Zhang, Yi; Shen, Qian; Zhu, Qianqian; Ge, Xiangchao; Liu, Yina; Wen, Zhen; Sun, Xuhui

doi:10.1016/j.nanoen.2021.106453

Cited by 42 publications

(21 citation statements)

References 30 publications

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“…The safe storage of hydrogen is important, and as a result, different solutions have been explored. The examples include the Pd/ZnO nanorod-based hydrogen sensor powered by a windmill-like TENG (WL-TENG) . The WL-TENG used in this work (Figure b) is designed to harvest wind energy when the vehicle is driven with hydrogen fuel.…”

Section: Tengs As Power Sources For Chemical Sensorsmentioning

confidence: 99%

“…The Pd particles catalyze the H 2 to active free radicals which then distribute on the ZnO nanorod surface and lead to a decrease in the resistance. The effect of H 2 concentration was directly visualized via the number and brightness of the LEDs Table summarizes the use of TENGs as power sources for the gas sensors.…”

Section: Tengs As Power Sources For Chemical Sensorsmentioning

confidence: 99%

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Triboelectric Nanogenerators as Power Sources for Chemical Sensors and Biosensors

2022

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The recent advances of portable sensors in flexible and wearable form factors are drawing increasing attention worldwide owing to their requirement applications ranging from health monitoring to environment monitoring. While portability is critical for these applications, real-time data gathering also requires a reliable power supply�which is largely met with batteries. Besides the need for regular charging, the use of toxic chemicals in batteries makes it difficult to rely on them, and as a result different types of energy harvesters have been explored in recent years. Among these, triboelectric nanogenerators (TENGs) provide a promising platform for harnessing ambient energy and converting it into usable electric signals. The ease of fabrication and possibility to develop TENGs with a diverse range of easily available materials also make them attractive. This review focuses on the TENG technology and its efficient use as a power source for various types of chemical sensors and biosensors. The paper describes the underlying mechanism, various modes of working of TENGs, and representative examples of their utilization as power sources for sensing a multitude of analytes. The challenges associated with their adoption for commercial solutions are also discussed to stimulate further advances and innovations.

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Section: Tengs As Power Sources For Chemical Sensorsmentioning

confidence: 99%

Section: Tengs As Power Sources For Chemical Sensorsmentioning

confidence: 99%

Triboelectric Nanogenerators as Power Sources for Chemical Sensors and Biosensors

2022

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“…As one of the fastest growing organisms, seaweed has been widely used to fabricate alginate fibers with flame-retardant, biodegradable, and biocompatible features, providing innovative alternatives to traditional synthetic fibers for flexible and wearable electronics. − The unique surface polar and design diversity of alginate fibers make them easily composite with semiconducting nano-oxides without phase separation. Compared with typical gas-sensing oxides like ZnO, SnO 2 , In 2 O 3 , WO 3 , Fe 2 O 3 , and their junctions, − bismuth oxide (Bi 2 O 3 ) polymorphs show wide applications in photocatalysis, supercapacitors, fuel cells, and multiferroics, − while few attempts have been devoted to studying and revealing the gas-sensing performance of Bi 2 O 3 at room temperature. , Based on the tunable surface chemistry and favorable transport properties of the soft–hard interface between seaweed fabric and Bi 2 O 3 nanostructures, flexible gas sensors with desirable sensitivity are now possible for realizing wearable healthcare.…”

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confidence: 99%

Porous Oxide-Functionalized Seaweed Fabric as a Flexible Breath Sensor for Noninvasive Nephropathy Diagnosis

Zhang

et al. 2022

ACS Sens.

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Ever-increasing quality of life demands low-power and reliable gas-sensing technology for point-of-care monitoring of human health by relevant breath biomarkers. However, precise identification is rather challenging due to the relatively small concentration and an abundance of interferents. Herein, a breath sensor that can detect ppb-level ammonia is constructed based on a soft–hard interface design of biocompatible seaweed fabric and nanosheet-assembled bismuth oxide architectures after undergoing heat treatment. Benefiting from abundant defective sites and surface chemical state changes, the flexible sensor can work at room temperature and exhibits superior characteristics for ammonia detection, including ultrahigh response (1296), short response/recovery time (12/6 s), small detection limit (117 ppb), and remarkable anti-interference, even after repetitive mechanical bending and long-term fatigue. Furthermore, the flexible sensor demonstrates a noticeable response to the exhaled breath of a patient with Helicobacter pylori infection. After connecting the sensor with a green-light-emitting diode (LED) in the circuit, an alarm system successfully warns about ammonia levels based on the brightness of the LED. This work provides a potential strategy for wide-range ammonia detection and opens new applications in predictive and personalized healthcare platforms for noninvasive medical diagnosis.

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“…Natural disasters (e.g., earthquakes and meteorological disasters) [15][16][17] will also cause emergencies, to affect the normal operation of road transportation. [18] Second, bridge transportation [19,20] links the two sides of the strait in a city, which is also an important part of urban transportation. Monitoring the conditions of automobiles [10,13,14,21,22] is the basis to ensure the safety of bridge transportation and reduce the probability of emergencies.…”

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confidence: 99%

“…These powerful features give TENGs new advantages in building composite systems for effective self-powered intelligent systems. This review will cover the recent progress of TENG applications [82,103,104] in road/railway/maritime transportation and related emergency management. Figure 1 demonstrates the topics of this review article, including aspects of several typical designs and applications of TENGs in transportation and related surrounding emergency management.…”

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confidence: 99%

TENG Applications in Transportation and Surrounding Emergency Management

Han

Xiong

et al. 2022

Advanced Sustainable Systems

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With the rapid development of transportation technology, people's lives are becoming more and more convenient, but the popularity of high speed transportation also increases the probability of emergencies. Therefore, it is necessary to conduct real‐time and accurate monitoring on transportation conditions to reduce the occurrence of emergencies. For possibly emergencies in other circumstances (e.g., meteorological disasters, geological disasters, and maritime disasters), emergency management is also critical to ensure the security of people and property. Prediction and early‐warning can help to detect abnormal situations and take measures, prior to potential risks. The basis of real‐time and effective transportation monitoring and emergency management requires a continuous and stable power supply for randomly distributed sensors and actuators. Triboelectric nanogenerators (TENGs) have been extensively investigated in different transportation circumstances to harvest the surrounding energy and drive distributed sensors for self‐powered wireless monitoring. This article surveys the research progress in TENGs in road transportation, bridge transportation, railway transportation, and maritime transportation, and related surrounding emergency management. Representative applications and the main achievements are summarized for these different application scenarios. A perspective on TENG research is given, and the remaining challenges facing TENGs in transportation and emergency management are discussed, along with potential solutions.

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A self-powered hydrogen leakage sensor based on impedance adjustable windmill-like triboelectric nanogenerator

Cited by 42 publications

References 30 publications

Triboelectric Nanogenerators as Power Sources for Chemical Sensors and Biosensors

Triboelectric Nanogenerators as Power Sources for Chemical Sensors and Biosensors

Porous Oxide-Functionalized Seaweed Fabric as a Flexible Breath Sensor for Noninvasive Nephropathy Diagnosis

TENG Applications in Transportation and Surrounding Emergency Management

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