Triboelectric Nanogenerator for Ocean Wave Graded Energy Harvesting and Condition Monitoring

Yang, Xu; Yang, Weixiong; Lu, Xiaohui; Yang, Yanfei; Li, Jianping; Wen, Jianming; Cheng, Tinghai; Wang, Zhong Lin

doi:10.1021/acsnano.1c05685

Cited by 89 publications

(50 citation statements)

References 37 publications

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“…[207] The method is based on triboelectric nanogenerator (TENG), combining electrostatic induction with contact-electrification and harvests energy from nature. [208][209][210][211][212][213][214][215] The polytetrafluoroethylene (PTFE) surface with a hierarchic nonwetting structure is used as a substrate. The system can output the electricity with 1.5 μA cm -2 current density and 20 mW cm -2 power density, driving 20 LEDs.…”

Section: Electricity Generationmentioning

confidence: 99%

Droplet Bouncing: Fundamentals, Regulations, and Applications

Han

Tang

et al. 2022

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Droplet impact is a ubiquitous phenomenon in nature, daily life, and industrial processes. It is thus crucial to tune the impact outcomes for various applications. As a special outcome of droplet impact, the bouncing of droplets keeps the form of the droplets after the impact and minimizes the energy loss during the impact, being beneficial in many applications. A unified understanding of droplet bouncing is in high demand for effective development of new techniques to serve applications. This review shows the fundamentals, regulations, and applications of millimeter‐sized droplet bouncing on solid surfaces and same/miscible liquids (liquid pool and another droplet). Regulation methods and current applications are summarized, and potential directions are proposed.

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Section: Electricity Generationmentioning

confidence: 99%

Droplet Bouncing: Fundamentals, Regulations, and Applications

Han

Tang

et al. 2022

Small

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Section: Blue Energymentioning

confidence: 99%

“…As shown in Figure 9g, Wang et al reported a flexible seaweed-like TENG (S-TENG) capable of harvesting wave energy when integrated into oceanographic buoys, undersea power stations, and coastlines [294]. Recently, as shown in Figure 9h, Xu et al reported a graded energy harvesting TENG (GEH-TENG) to adapt to changeable waves by two generation units operating in different transmission states [295]. Hence the GEH-TENG help monitor ocean wave condition and light caution lights installed on the shore.…”

Section: Blue Energymentioning

confidence: 99%

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Recent Progress in the Energy Harvesting Technology—From Self-Powered Sensors to Self-Sustained IoT, and New Applications

et al. 2021

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With the fast development of energy harvesting technology, micro-nano or scale-up energy harvesters have been proposed to allow sensors or internet of things (IoT) applications with self-powered or self-sustained capabilities. Facilitation within smart homes, manipulators in industries and monitoring systems in natural settings are all moving toward intellectually adaptable and energy-saving advances by converting distributed energies across diverse situations. The updated developments of major applications powered by improved energy harvesters are highlighted in this review. To begin, we study the evolution of energy harvesting technologies from fundamentals to various materials. Secondly, self-powered sensors and self-sustained IoT applications are discussed regarding current strategies for energy harvesting and sensing. Third, subdivided classifications investigate typical and new applications for smart homes, gas sensing, human monitoring, robotics, transportation, blue energy, aircraft, and aerospace. Lastly, the prospects of smart cities in the 5G era are discussed and summarized, along with research and application directions that have emerged.

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“…[ 35 ] A graded energy harvesting triboelectric nanogenerator was proposed for ocean wave graded energy harvesting and condition monitoring by Xu et al. [ 36 ] Wang et al. designed sandwich‐like triboelectric nanogenerators for hydrodynamic parameters revealing and energy harvesting.…”

Section: Introductionmentioning

confidence: 99%

A Self‐powered Triboelectric Coral‐Like Sensor Integrated Buoy for Irregular and Ultra‐Low Frequency Ocean Wave Monitoring

Wang

Liu

Wang

et al. 2021

Adv Materials Technologies

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remains a challenge, especially the perception of ocean waves motion. [1][2][3][4] Ocean wave sensing devices based on additional complex mechanical and hydraulic structures typically transform the multidirectional wave motion into linear reciprocation or rotation of these structures to generate electric signals. However, some such devices are restrained by several drawbacks, including lower accuracy and robustness and expensive maintenance costs. Furthermore, impeller-type sensors increase the risk of collision between marine animals, [5] remote radar sensors impact the lives of marine animals due to the generation of a strong electromagnetic field, [6] and the laying of large sensing equipment generates noises and disturbances to marine animals [7] and changes hydrodynamic conditions. Conventional signal processing strategies have been demonstrated to possibly provide insufficient information to estimate ocean wave cues, resulting in difficulty to meet the requirements of high accuracy (error range in the order of 1 m). [8,9] Moreover, most of these ocean wave sensors need an external power supply, and the high cost of power supply limits their development. Therefore, novel ocean wave sensing techniques are still an open research topic.The design of efficient ocean wave sensors for monitoring the marine environment and revealing dynamic changes has been a major challenge. In this study, a self-powered bionic coral wave sensor (BCWS) based on a triboelectric nanogenerator is proposed. The BCWS captures wave data, which are useful for marine engineering construction, marine resource development, and marine disaster warning. It is mainly composed of triboelectric perceiving units (60 mm in length, 10 mm in width, and 1.5 mm in thickness) encapsulated in coral tentacles, a fixation mechanism, a buoyancy tray, and a counterweight mechanism. With the help of its bio-inspired structural design, the BCWS effectively improves the signal response time and sensitivity in the 3D perception of wave information. In particular, the coral tentacles stimulated by a load cause contact-separation between fluorinated ethylene propylene and conductive ink electrodes, thereby generating electric signals. This analysis of the experimental data reveals that the BCWS perceives wave height, wave frequency, wave period, and wave direction with millimeter accuracy. To demonstrate the applicability and stability of the BCWS, several of its potential functions are illustrated, including controlling light emitting diodes, perceiving wave information in the ocean, and assisting overboard rescue. The results show that the BCWS provides an intelligent solution for modern marine monitoring.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/admt.202101098.

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Triboelectric Nanogenerator for Ocean Wave Graded Energy Harvesting and Condition Monitoring

Cited by 89 publications

References 37 publications

Droplet Bouncing: Fundamentals, Regulations, and Applications

Droplet Bouncing: Fundamentals, Regulations, and Applications

Recent Progress in the Energy Harvesting Technology—From Self-Powered Sensors to Self-Sustained IoT, and New Applications

A Self‐powered Triboelectric Coral‐Like Sensor Integrated Buoy for Irregular and Ultra‐Low Frequency Ocean Wave Monitoring

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