Piezoelectric nanofiber/polymer composite membrane for noise harvesting and active acoustic wave detection

Cui, Nuanyang; Jia, Xingtao; Lin, Anan; Liu, Jinmei; Bai, Suo; Zhang, Lu; Qin, Yong; Yang, Rusen; Zhou, Feng; Li, Yongqing

doi:10.1039/c9na00484j

Cited by 12 publications

(4 citation statements)

References 31 publications

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“…As shown above, acoustic energy harvesting technology based on only piezoelectric or triboelectric nanogenerators has been applied to many fields, such as biomedical and scientific detection [150]. However, a single energy harvesting principle often faces challenges in effectively converting environmental acoustic energy due to low power density and limited frequency range [151]. To address this, combining piezoelectric and triboelectric nanogenerators seems to be a good way to enhance the acoustic-electric conversion efficiency.…”

Section: Hybrid Acoustic Energy Harvestersmentioning

confidence: 99%

Research Progress of Acoustic Energy Harvesters Based on Nanogenerators

Huang,

Du,

Xiang

et al. 2023

International Journal of Energy Research

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In the wake of the rapid development of the Internet of Things (IoT) and artificial intelligence (AI) technology, a huge amount of wireless sensing nodes (WSNs) is urgently in demand in all aspects of daily production and living, such as smart cities, smart transportation, and intelligent monitoring. However, it has become one of the crucial challenges in the development of IoT technology to fulfill the requirements of energy consumption for enormous amounts of WSNs. Therefore, it not only possesses great potential to realize in situ power supply of WSNs by harvesting environmental energy but also can address the problems of durability, maintenance, and cost that exist in battery power supply. In particular, acoustic energy is ubiquitous in the environment but not efficiently utilized. Meanwhile, piezoelectric nanogenerators (PENG) and triboelectric nanogenerators (TENG) are capable of accomplishing efficient conversion of broadband, high entropy, and weak energy as the new energy conversion technology. Therefore, the basic principle of acoustic energy harvester based on nanogenerators (NGs) is firstly discussed. Then, the advances of acoustic energy harvesters based on NGs in the viewpoint of acoustic energy resonator structures are systematically reviewed for the first time. This review not only covers the working mechanism, structural design, and application scenarios of acoustic energy harvesters but also explores the advances in ultrasonic energy harvesting based on NGs. Finally, existing challenges and prospects for future development are systematically discussed, which will facilitate the development of acoustic energy harvesting based on NGs.

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Section: Hybrid Acoustic Energy Harvestersmentioning

confidence: 99%

Research Progress of Acoustic Energy Harvesters Based on Nanogenerators

Huang,

Du,

Xiang

et al. 2023

International Journal of Energy Research

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“…An interaction between two distinct frictional electrode materials results in the generation of frictional charges on their surfaces, as well as the conversion of mechanical energy into electrical potential in the event of additional electrostatic induction. TENGs can convert small mechanical energies from human body movements [6][7][8][9][10][11][12], breezes [13][14][15], rotations [16], sound waves [17][18][19], water waves [20][21][22][23][24][25][26][27][28], and other sources into electrical energy for various wearable electronics [29].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Material in Triboelectric Nanogenerators: A Review

Sun,

Zhu,

Rehman

et al. 2024

Nanomaterials

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Nowadays, magnetic materials are also drawing considerable attention in the development of innovative energy converters such as triboelectric nanogenerators (TENGs), where the introduction of magnetic materials at the triboelectric interface not only significantly enhances the energy harvesting efficiency but also promotes TENG entry into the era of intelligence and multifunction. In this review, we begin from the basic operating principle of TENGs and then summarize the recent progress in applications of magnetic materials in the design of TENG magnetic materials by categorizing them into soft ferrites and amorphous and nanocrystalline alloys. While highlighting key role of magnetic materials in and future opportunities for improving their performance in energy conversion, we also discuss the most promising choices available today and describe emerging approaches to create even better magnetic TENGs and TENG-based sensors as far as intelligence and multifunctionality are concerned. In addition, the paper also discusses the integration of magnetic TENGs as a power source for third-party sensors and briefly explains the self-powered applications in a wide range of related fields. Finally, the paper discusses the challenges and prospects of magnetic TENGs.

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“…7,8 However, limited by the inherent low power density characteristics and broad bandwidth, sound can hardly be captured by traditional piezo-or triboelectric energy conversion equipment. 9,10 To realize the utilization of sound energy, a number of attempts have been made to improve the sensitivity of nanogenerators. 11−16 The widely accepted approach is to increase the porosity of the material, which can be achieved by electrospinning and material etching, thereby reducing the modulus and increasing the deformation and, in turn, improving the energy conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The emerging development of the Internet of Things puts forward stringent requirements for the power supply of truly autonomous MEMS electronics based on lightweight, portable, and sustainable needs. − As a potential solution, the effective conversion of ubiquitous mechanical energy in the environment to available electricity for powering such devices has attracted growing attention. , Acoustic energy, with the unique and attractive features of being widely distributed, sustainable, and clean, is an excellent resource for such applications, especially in biomonitoring, biometric system, and entrance and mobile control. , However, limited by the inherent low power density characteristics and broad bandwidth, sound can hardly be captured by traditional piezo- or triboelectric energy conversion equipment. , To realize the utilization of sound energy, a number of attempts have been made to improve the sensitivity of nanogenerators. − The widely accepted approach is to increase the porosity of the material, which can be achieved by electrospinning and material etching, thereby reducing the modulus and increasing the deformation and, in turn, improving the energy conversion efficiency. − But, it is still insufficient for the effective collection of weak sound signals. For this reason, the design of external structures such as cantilever beams or resonant cavities is exploited to amplify the deformation of the energy conversion device. − Though the structural design does provide improved sensitivity in energy harvest, it also brings problems to the flexibility and stability of the device.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous PVDF Hollow Fiber Employed Piezo–Tribo Nanogenerator for Effective Acoustic Harvesting

Chen

Wang

et al. 2021

ACS Appl. Mater. Interfaces

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Restricted by the inherent property of low power density, acoustic energy can hardly be effectively captured by conventional piezo- or triboelectric nanogenerators for powering miniature electronics. Herein, a novel piezo–tribo hybrid nanogenerator employing nanoporous polyvinylidene fluoride (PVDF) hollow fiber and polydimethylsiloxane (PDMS) valve, which can mimic the eardrum, has been advocated for efficient acoustic harvesting. The nanoporous, hollow, and valve structure design, together with the effective combination of piezo- and triboelectricity, make the nanoporous PVDF hollow fiber and PDMS valve based acoustic harvester (PHVAH) a promising candidate for acoustic–electric conversion. With an optimal output of 105.5 V and 16.7 μA and a power density of 0.92 W m–2 under the sound stimulation of 117.6 dB and 150 Hz, it can not only recognize audio signals but also convert the sound into electrical energy to light up seven LED bulbs in series. Exhibiting excellent durability and stability, the disruptive innovation proposed here is an effective method for hunting the ubiquitous sound energy in the environment, which provides great potential and impetus for using acoustic–electric conversion to power various low-power-consumption sensors.

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Piezoelectric nanofiber/polymer composite membrane for noise harvesting and active acoustic wave detection

Abstract: The PENG exhibited a good performance for harvesting and detecting low-frequency acoustic energy with a minimum sound pressure of 0.18 Pa.

Cited by 12 publications

References 31 publications

Research Progress of Acoustic Energy Harvesters Based on Nanogenerators

Research Progress of Acoustic Energy Harvesters Based on Nanogenerators

Magnetic Material in Triboelectric Nanogenerators: A Review

Nanoporous PVDF Hollow Fiber Employed Piezo–Tribo Nanogenerator for Effective Acoustic Harvesting

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