A teeterboard-like hybrid nanogenerator for efficient harvesting of low-frequency ocean wave energy

Wu, Yan; Zeng, Qixuan; Tang, Qian; Liu, Wenlin; Liu, Guanlin; Zhang, Ying; Wu, Jun; Hu, Chenguo; Wang, Xue

doi:10.1016/j.nanoen.2019.104205

Cited by 68 publications

(55 citation statements)

References 47 publications

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“…With the rapid development of the Internet of things, powering the ubiquitous and distributed sensors has become a key challenge [1][2][3][4], and converting ambient energy into available electricity is an attractive approach to solve this problem [5][6][7][8]. Among various types of energy resources in nature, such as solar, mechanical, tidal energies, and so on, wind energy is one of the most attractive candidates because it is a sustainable clean energy with the advantages of wide distribution and enormous reserves [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Durable Windmill-Like Hybrid Nanogenerator for Steady and Efficient Harvesting of Low-Speed Wind Energy

Zhang

Zeng

et al. 2020

Nano-Micro Lett.

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HIGHLIGHTS • A novel windmill-like hybrid nanogenerator with contact-separation structure was proposed for harvesting breeze energy at low wind speed. • A spring steel sheet was creatively used both as an electrode of triboelectric nanogenerator and a booster for contact-separation activity. • A magnetic acting as a bifunctional element supplies magnetic flux variation in electromagnetic generator and overcomes electrostatic adsorption between tribolayers simultaneously.

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Section: Introductionmentioning

confidence: 99%

An Ultra-Durable Windmill-Like Hybrid Nanogenerator for Steady and Efficient Harvesting of Low-Speed Wind Energy

Zhang

Zeng

et al. 2020

Nano-Micro Lett.

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“…As illustrated in Figure 3(a) , a teeterboard-like hybrid nanogenerator was developed by Wu et al with a multilayered TENG floating on water at one end and an EMG driven by a lever which moved vertically at the other end [ 95 ]. With the novel separate design, the lightweight TENG end can be easily triggered by low-frequency ocean waves, resulting in the freestanding Al tubes rolling on the PTFE surface and generating desirable triboelectric outputs.…”

Section: Teng-based Hybrid Generators For Outdoor Applicationsmentioning

confidence: 99%

“…Reproduced with permission from Ref. [ 95 ], copyright 2019 Elsevier B.V. (b) A rotational pendulum-based TENG-EMG hybrid generator designed for ultralow-frequency blue energy harvesting. Reproduced with permission from Ref.…”

Section: Figurementioning

confidence: 99%

Triboelectric Nanogenerators and Hybridized Systems for Enabling Next-Generation IoT Applications

et al. 2021

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In the past few years, triboelectric nanogenerator-based (TENG-based) hybrid generators and systems have experienced a widespread and flourishing development, ranging among almost every aspect of our lives, e.g., from industry to consumer, outdoor to indoor, and wearable to implantable applications. Although TENG technology has been extensively investigated for mechanical energy harvesting, most developed TENGs still have limitations of small output current, unstable power generation, and low energy utilization rate of multisource energies. To harvest the ubiquitous/coexisted energy forms including mechanical, thermal, and solar energy simultaneously, a promising direction is to integrate TENG with other transducing mechanisms, e.g., electromagnetic generator, piezoelectric nanogenerator, pyroelectric nanogenerator, thermoelectric generator, and solar cell, forming the hybrid generator for synergetic single-source and multisource energy harvesting. The resultant TENG-based hybrid generators utilizing integrated transducing mechanisms are able to compensate for the shortcomings of each mechanism and overcome the above limitations, toward achieving a maximum, reliable, and stable output generation. Hence, in this review, we systematically introduce the key technologies of the TENG-based hybrid generators and hybridized systems, in the aspects of operation principles, structure designs, optimization strategies, power management, and system integration. The recent progress of TENG-based hybrid generators and hybridized systems for the outdoor, indoor, wearable, and implantable applications is also provided. Lastly, we discuss our perspectives on the future development trend of hybrid generators and hybridized systems in environmental monitoring, human activity sensation, human-machine interaction, smart home, healthcare, wearables, implants, robotics, Internet of things (IoT), and many other fields.

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“…proposed a teeterboard‐like hybrid nanogenerator including a multi‐layered TENG and electromagnetic generator to harvest low‐frequency ocean waves. [ 30 ] Although these distinct TENGs generated electrical power under low‐frequency range and irregular movement, it is fundamentally impossible for TENGs to produce electrical energy when input excitation runs out. Bhatia et al.…”

Section: Introductionmentioning

confidence: 99%

“…[28] Ahmed et al developed a TENG with a combination of free standing rolling nylon balls and a fully enclosed duckshaped configuration [29] and Wu et al proposed a teeterboardlike hybrid nanogenerator including a multi-layered TENG and electromagnetic generator to harvest low-frequency ocean waves. [30] Although these distinct TENGs generated electrical power under low-frequency range and irregular movement, it is fundamentally impossible for TENGs to produce electrical energy when input excitation runs out. Bhatia et al developed an energy storage mechanism that can save variable dynamic energy to produce uniform output electrical energy.…”

Section: Introductionmentioning

confidence: 99%

Long‐Lasting and Steady Triboelectric Energy Harvesting from Low‐Frequency Irregular Motions Using Escapement Mechanism

Han

Kim

Rajabi‐Abhari

et al. 2020

Advanced Energy Materials

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Most mechanical energy harvesters produce only small amounts of electrical power from extremely low‐frequency input motions and immediately stop generating electricity when mechanical kinetic energy is exhausted. Here, a steady, long‐lasting and power‐boosted triboelectric nanogenerator is reported that can efficiently harvest from extremely low‐frequency irregular motions of less than 0.1 Hz by utilizing an escapement mechanism and frequency up‐conversion device. The escapement mechanism‐based triboelectric nanogenerator (EM‐TENG) consists of a mechanical energy storage spring, escapement mechanism and a torsional resonator for regular operation and frequency up‐conversion. In addition, the micro‐patterned alternating dielectric surfaces of Nylon and polytetrafluoroethylene (PTFE) and the comb‐type rotator significantly improve the output performance of the rotational EM‐TENG, increasing the current density level approximately 4.2 times compared to flat surfaces. Under an input frequency of 0.067 Hz, the EM‐TENG produces an open circuit voltage of 320 V and a short‐circuit current density of 0.59 mA m‐2. Most importantly, the EM‐TENG can produce long‐lasting and steady output power for 110 s (22 times) under only 5 s of input motion. Therefore, the EM‐TENG might pave the way to effectively harvest energy from extremely low‐frequency motions in nature, such as human motion, structural vibration and ocean waves.

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A teeterboard-like hybrid nanogenerator for efficient harvesting of low-frequency ocean wave energy

Cited by 68 publications

References 47 publications

An Ultra-Durable Windmill-Like Hybrid Nanogenerator for Steady and Efficient Harvesting of Low-Speed Wind Energy

An Ultra-Durable Windmill-Like Hybrid Nanogenerator for Steady and Efficient Harvesting of Low-Speed Wind Energy

Triboelectric Nanogenerators and Hybridized Systems for Enabling Next-Generation IoT Applications

Long‐Lasting and Steady Triboelectric Energy Harvesting from Low‐Frequency Irregular Motions Using Escapement Mechanism

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