Porosity modulated piezo-triboelectric hybridized nanogenerator for sensing small energy impacts

Sahu, Manisha; Vivekananthan, Venkateswaran; Hajra, Sugato; Khatua, Dipak Kumar; Kim, Sang‐Jae

doi:10.1016/j.apmt.2020.100900

Cited by 32 publications

(22 citation statements)

References 58 publications

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“…[ 19 ] Many research groups have extensively studied piezoelectric, triboelectric, and electromagnetic generators. [ 20–23 ] The triboelectric nanogenerator (TENG) offers a wide range of advantages among all nanogenerators due to several factors like cost‐effectiveness, various operating modes, material choice, high output, low‐frequency operation, and easy fabrication. [ 24 ] It is responsible for the alteration of mechanical energy to electrical energy.…”

Section: Introductionmentioning

confidence: 99%

A Green Metal–Organic Framework‐Cyclodextrin MOF: A Novel Multifunctional Material Based Triboelectric Nanogenerator for Highly Efficient Mechanical Energy Harvesting

Hajra

Sahu

Padhan

et al. 2021

Adv Funct Materials

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The naturally available cyclodextrin has opened up a wide range of research avenues because of its superior characteristics such as being non‐toxic, biocompatible, and edible. The cyclodextrin is the green multifunctional material that can add to the triboelectric series and extend its self‐powered applications. The ultrasonic synthesized cyclodextrin metal–organic framework (CD‐MOF) designed using sodium as a metal ion and cyclodextrin as a ligand for the triboelectric nanogenerator is reported. The various detailed characterizations of the CD‐MOFs give an insight into the properties of the synthesized material. The Kelvin probe force microscopy suggests three types of CD‐MOFs, exhibiting a positive potential. As per the surface potential, the output of the various CD‐MOF based TENG is varied as alpha CD MOF/Teflon > gamma CD‐MOF/Teflon > beta CD‐MOF/Teflon. The alpha CD MOF/Teflon TENG produces an electrical output of 152 V, 1.2 μA, and 14.3 nC, respectively. The fabricated device output is utilized for powering numerous low‐power electronics through a capacitor and bridge rectifier circuit. The multiunit Z‐shaped TENG device is attached to various surfaces such as the shoe heel and the backside of the school bag, and the corresponding energy harvesting response is demonstrated.

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Section: Introductionmentioning

confidence: 99%

A Green Metal–Organic Framework‐Cyclodextrin MOF: A Novel Multifunctional Material Based Triboelectric Nanogenerator for Highly Efficient Mechanical Energy Harvesting

Hajra

Sahu

Padhan

et al. 2021

Adv Funct Materials

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“…Since the discovery of ferroelectricity in BaTiO 3 , BaTiO 3 -based oxide compounds have been extensively researched for numerous applications, from electrical devices to energy utilizations [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] . Presently, BaTiO 3 is the most important ceramic material for multilayer ceramic capacitors (MLCCs) [12] , [13] , [14] , [15] .…”

Section: Introductionmentioning

confidence: 99%

Sonochemical activation in aqueous medium for solid-state synthesis of BaTiO3 powders

Lee

Kim

Nam

et al. 2022

Ultrasonics Sonochemistry

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Highlights Enhanced solid-state synthesis of BaTiO 3 by sonochemical activation in aqueous medium. Investigations of physical and chemical effects of sonochemical activation. Model proposal for the role of aqueous medium in solid-state synthesis. Verification of the competitiveness of the resulting BaTiO 3 powders and ceramics.

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“…On account of the nanoporous and hollow fiber structure, the PHV membrane has a lower Young's modulus than traditional PVDF fiber film, resulting in stronger vibration and greater deformation under the same acoustic stimulation, which in turn leads to a higher piezo−triboelectric output. 35,36 The PDMS valves also make an enormous contribution. In conjunction with the above factors, the proposed PHVAH exhibits admirable sound collection capabilities.…”

Section: Resultsmentioning

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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Porosity modulated piezo-triboelectric hybridized nanogenerator for sensing small energy impacts

Cited by 32 publications

References 58 publications

A Green Metal–Organic Framework‐Cyclodextrin MOF: A Novel Multifunctional Material Based Triboelectric Nanogenerator for Highly Efficient Mechanical Energy Harvesting

A Green Metal–Organic Framework‐Cyclodextrin MOF: A Novel Multifunctional Material Based Triboelectric Nanogenerator for Highly Efficient Mechanical Energy Harvesting

Sonochemical activation in aqueous medium for solid-state synthesis of BaTiO3 powders

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

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