Catch wave power in floating nets

Wang, Zhong Lin

doi:10.1038/542159a

Cited by 577 publications

(307 citation statements)

References 7 publications

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“…In practice, our study points to an effective approach for enhancing the output power of TENGs, which greatly improves the prospect of large-scale blue energy using nanogenerators networks 36 . Considering that existing TENGs proposed for harvesting water wave energy are already enclosed and sealed with waterproof containers 37, 38 , it is rather straightforward and cost-effective to make them airtight and maintain an internal vacuum.…”

Section: Discussionmentioning

confidence: 83%

Achieving ultrahigh triboelectric charge density for efficient energy harvesting

et al. 2017

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With its light weight, low cost and high efficiency even at low operation frequency, the triboelectric nanogenerator is considered a potential solution for self-powered sensor networks and large-scale renewable blue energy. As an energy harvester, its output power density and efficiency are dictated by the triboelectric charge density. Here we report a method for increasing the triboelectric charge density by coupling surface polarization from triboelectrification and hysteretic dielectric polarization from ferroelectric material in vacuum (P ~ 10−6 torr). Without the constraint of air breakdown, a triboelectric charge density of 1003 µC m−2, which is close to the limit of dielectric breakdown, is attained. Our findings establish an optimization methodology for triboelectric nanogenerators and enable their more promising usage in applications ranging from powering electronic devices to harvesting large-scale blue energy.

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Section: Discussionmentioning

confidence: 83%

Achieving ultrahigh triboelectric charge density for efficient energy harvesting

et al. 2017

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“…The omnipresent vibration can also serve as a source of energy to power self-powered systems, such as micro-electromechanical systems, remote environmental sensors, homeland security, and even portable/wearable personal electronics. [3] Additionally, it is a cost-effective, simple, and robust technique for energy harvesting, [1,[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] and can alternatively serve as an active mechanical motion sensor using its own electrical output without a secondary power source. [2] Its fundamental physics and output characteristics can be attributed to Maxwell's displacement current.…”

Section: Introductionmentioning

confidence: 99%

A Soft and Robust Spring Based Triboelectric Nanogenerator for Harvesting Arbitrary Directional Vibration Energy and Self‐Powered Vibration Sensing

Wang

et al. 2017

Advanced Energy Materials

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201

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Vibration is a common mechanical phenomenon and possesses mechanical energy in ambient environment, which can serve as a sustainable source of power for equipment and devices if it can be effectively collected. In the present work, a novel soft and robust triboelectric nanogenerator (TENG) made of a silicone rubber‐spring helical structure with nanocomposite‐based elastomeric electrodes is proposed. Such a spring based TENG (S‐TENG) structure operates in the contact‐separation mode upon vibrating and can effectively convert mechanical energy from ambient excitation into electrical energy. The two fundamental vibration modes resulting from the vertical and horizontal excitation are analyzed theoretically, numerically, and experimentally. Under the resonant states of the S‐TENG, its peak power density is found to be 240 and 45 mW m−2 with an external load of 10 MΩ and an acceleration amplitude of 23 m s−2. Additionally, the dependence of the S‐TENG's output signal on the ambient excitation can be used as a prime self‐powered active vibration sensor that can be applied to monitor the acceleration and frequency of the ambient excitation. Therefore, the newly designed S‐TENG has a great potential in harvesting arbitrary directional vibration energy and serving as a self‐powered vibration sensor.

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“…[10] The energy harvesting technologies that can provide continuous power supply [11][12][13][14][15][16] and selfpowered sensors that can directly transfer the detect information into electrical signals even without power [7,17,18] are the idea approaches to meet the requirements.Based on the triboelectric effect and the electrostatic induction, triboelectric nanogenerators (TENGs) invented by Wang and co-workers [19] have a few remarkable advantages, such as flexibility, light weight, easy integration. On the other hand, IoTs also expects the sensors can continuously work for long hours without maintenance.…”

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confidence: 99%

Multifunctional Sensor Based on Translational‐Rotary Triboelectric Nanogenerator

Zhang

Zou

et al. 2019

Advanced Energy Materials

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to the current multifunctional sensors. On the other hand, IoTs also expects the sensors can continuously work for long hours without maintenance. [10] The energy harvesting technologies that can provide continuous power supply [11][12][13][14][15][16] and selfpowered sensors that can directly transfer the detect information into electrical signals even without power [7,17,18] are the idea approaches to meet the requirements.Based on the triboelectric effect and the electrostatic induction, triboelectric nanogenerators (TENGs) invented by Wang and co-workers [19] have a few remarkable advantages, such as flexibility, light weight, easy integration. They have demonstrated to be an applicable solution for both self-powered sensing and energy harvesting. [20][21][22][23] Specifically, the force, [24] speed, [25,26] acceleration, [27,28] direction, [29] and angle [30] all can be measured by the TENG. And the TENG also has been successfully used to build multifunctional sensors. [31][32][33] Based on the TENG, a real multifunctional sensor enabled by magnetically regulated TENG has the capacity to measure motion parameters, including acceleration, speed, and direction of rotary and linear motions. [33] Unfortuately, six output channels increace the complexity of the sensor and the surface contact friction limits its sensitivity. Moreover, for enhancing the output performance of the TENG, many works are focused on the selection and the surface nanocrystallization of friction materials, which both are relatead to the triboelectric effect. [34][35][36] However, about the electrostatic induction, there also need some theoretical guidances of the electrode materials selection.In this paper, inspired by the movement statement of a magnetic cylinder placed beside a fixed magnetic cylinder, a cylindrical self-powered multifunctional sensor (MS) with a translational-rotary magnetic mechanism is presented, which is capable of detecting acceleration, force, and rotational parameters. The MS is composed of a translational-rotary magnetic mechanism, a TENG module, and an acrylic shell. The translational-rotary magnetic mechanism is a low damping magnetic cylinder (MC) rotating around a fixed circular tube, which is embedded by a magnetic disk (MD). The sensitivity of the MS can be adjusted by changing the distance between two magnets. The TENG module consists of the MC and a friction layer that is a polytetrafluorethylene (PTFE) film with two interdigitated electrodes (IEs) bonded on the surface of the tube. The MS can transform a translational motion into a swing motion or a Triboelectric nanogenerators with a large number of desirable advantages, such as flexibility, light weight, and easy integration, are unique for sensor design. In this paper, based on the triboelectric nanogenerator (TENG), a cylindrical self-powered multifunctional sensor (MS) with a translationalrotary magnetic mechanism is proposed, which has the capacity to detect acceleration, force, and rotational parameters. The MS can transform a translational motion...

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Catch wave power in floating nets

Cited by 577 publications

References 7 publications

Achieving ultrahigh triboelectric charge density for efficient energy harvesting

Achieving ultrahigh triboelectric charge density for efficient energy harvesting

A Soft and Robust Spring Based Triboelectric Nanogenerator for Harvesting Arbitrary Directional Vibration Energy and Self‐Powered Vibration Sensing

Multifunctional Sensor Based on Translational‐Rotary Triboelectric Nanogenerator

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