Bio-waste polymer hybrid as induced piezoelectric material with high energy harvesting efficiency

Kumar, Chandan; Gaur, Anupama; Tiwari, Shivam; Biswas, Arpan; Kumar, Sanjay; Maiti, Pralay

doi:10.1016/j.coco.2018.11.004

Cited by 56 publications

(32 citation statements)

References 38 publications

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“…The power has also been determined for the optimized sample of PVDF/3%KNN NRs electrospun nanocomposite web‐based piezoelectric nanogenerator. The power and power density are calculated using the following formula

P = V I

where P is the power and V and I are the output voltage and current, respectively . The calculated power of the 3% KNN NRs‐based nanogenerator is 9.13 μW (calculation details are shown in the Supporting Information, S2).…”

Section: Resultsmentioning

confidence: 99%

Influence of High Aspect Ratio Lead‐Free Piezoelectric Fillers in Designing Flexible Fibrous Nanogenerators: Demonstration of Significant High Output Voltage

Bairagi

Ali

2019

Energy Tech

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Engineering a flexible, cost‐effective piezoelectric energy harvester with a higher piezoelectric performance, i.e., higher voltage and power density, is a great technical challenge nowadays. Herein, the same target is set to demonstrate a unique nanogenerator comprising nanorods (aspect ratio of ≈8.5) of lead‐free potassium sodium niobate (KNN) and poly(vinylidene fluoride) (PVDF) where further poling process is fully omitted. The unique dimension of the synthesized rods with minimal loading (only 3%) bestows, somewhat surprisingly, a negative effect on beta nucleation but subdues this effect by the significant contribution toward the piezoelectric response by self‐orienting the dipoles at the electrospinning process by itself. Thus, the approach resolves the unmet task of complicacy in poling both the molecular and ionic dipoles at the same electric field in a subsequent poling of the finally formed nanocomposite. The nanodevice shows a higher open‐circuit output voltage of ≈17.5 V, an output current of ≈0.522 μA, and a current density of ≈0.13 μA cm−2 under repeated finger tapping and can power a light‐emitting diode (LED) of 2 V practically. The study opens a new route for excellent flexible piezoelectric nanogenerators for promising application in an enormous arena of self‐powering portable and wearable electronic gadgets.

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P = V I

Section: Resultsmentioning

confidence: 99%

Influence of High Aspect Ratio Lead‐Free Piezoelectric Fillers in Designing Flexible Fibrous Nanogenerators: Demonstration of Significant High Output Voltage

Bairagi

Ali

2019

Energy Tech

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“…However, inorganic piezoelectric materials, such as, lead zirconate titanate,42 BT,43 sodium niobate,44 lead magnesium niobate lead titanate,45 and zinc stannate (Zn 2 SnO 4 )46 have high significant piezoelectric performance but their rigid nature limit their application in flexible self‐powered devices 41. Hybrid piezoelectric composites for energy harvesting based on BT is attractive because of its high dielectric constant (ε ∼ 2000), low cost, natural abundance, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

“…One potential method to increase the dielectric constant of the PVDF polymers is to introduce high dielectric constant materials such as inorganic piezoelectric materials (i.e., barium titanate (BT) nanoparticles) into the PVDF matrix. [14,40,41] However, inorganic piezoelectric materials, such as, lead zirconate titanate, [42] BT, [43] sodium niobate, [44] lead magnesium niobate lead titanate, [45] and zinc stannate (Zn 2 SnO 4 ) [46] have high significant piezoelectric performance but their rigid nature limit their application in flexible self-powered devices. [41] Hybrid piezoelectric composites for energy harvesting based on BT is attractive because of its high dielectric constant (ε ∼ 2000), low cost, natural abundance, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Mokhtari

Spinks

Fay

et al. 2020

Adv Materials Technologies

131

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to produce a new generation of smart garments.Such affordable smart garments could fulfil diverse applications, ranging from work wear in specific industries to the almost infinite scenarios of personal use including energy harvesting/storage, force/pressure measurement, porosity or color variation, and sensors (movement, temperature, chemicals). [1][2][3][4][5][6][7] However, performance, scalability, and cost problems have restricted the deployment of currently available smart textiles. To build smart textiles on an industrial scale, method of manufacturing and material selection are two important requirements. The approach of new energy materials and novel fabrication methods are essential to develop wearable technologies. Wearable energy generating devices that can be seamlessly integrated into garments are a critical component of the wearable electronics genre. Currently flexible fiber energy harvesters have attracted significant attention due to their ability to be integrated into fabrics, or stitched into existing textiles. Large-scale production of energy harvester fibers using conventional manufacturing processes, however, is still a challenge.Energy harvesting from environmental mechanical sources such as body movements including finger imparting, [8] pushing, [9] stretching, [10] bending, [11] twisting, [12] air flow, [13] transportation movement, [14] and sound waves [15] has attracted widespread attention to promote flexible self-powered devices. [16] The best common mechanical energy harvesting methods are based on piezoelectric materials. [17] Piezoelectric materials can be classified in three categories: piezoelectric ceramics, piezoelectric polymers, and piezoelectric composites. [18] Unlike the energy harvesters utilizing solar or thermal energy, performance of piezoelectric generators is generally not limited by environmental factors. [19] Piezoelectric generators have received massive interest in energy harvesting technology due to their unique ability to capture the ambient vibrations to generate electric signals. [20] The unique energy transduction of piezoelectric materials enables their applications in fields of energy harvesting, actuators, [21] sensors, [22] structural health monitoring, and use in biomedical devices. [23] Numerous approaches have been used to fabricate piezoelectric generators, such as coating, [24] spinning, [25] depositing, [26] and printing. [27] Wearable energy harvesting is of practical interest for many years and for diverse applications, including development of self-powered wireless sensors within garments for human health monitoring. Herein, a novel approach is reported to create wearable energy generators and sensors using nanostructured hybrid piezoelectric fibers and exploiting the enormous variety of textile architectures. It is found that high performance hybrid piezofiber is obtained using a barium titanate (BT) nanoparticle and poly(vinylidene fluoride) (PVDF) with a mass ratio of 1:10. These fibers are knitted to form a wearable energy generator that pr...

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“…[7][8][9][10][11] Self-powered devices or nanogenerators harvest the mechanical energy from different sources. To date, many approaches have been proposed based on triboelectric 12 and piezoelectric 13,14 nanogenerators. Triboelectric nanogenerators have high energy conversion efficiency and high output voltage; 5,15 however, they possess drawbacks such as low durability and warping problems due to their large size.…”

Section: Introductionmentioning

confidence: 99%

Retracted Article: A bio-based piezoelectric nanogenerator for mechanical energy harvesting using nanohybrid of poly(vinylidene fluoride)

et al. 2019

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Bio-waste polymer hybrid as induced piezoelectric material with high energy harvesting efficiency

Cited by 56 publications

References 38 publications

Influence of High Aspect Ratio Lead‐Free Piezoelectric Fillers in Designing Flexible Fibrous Nanogenerators: Demonstration of Significant High Output Voltage

Influence of High Aspect Ratio Lead‐Free Piezoelectric Fillers in Designing Flexible Fibrous Nanogenerators: Demonstration of Significant High Output Voltage

Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers

Retracted Article: A bio-based piezoelectric nanogenerator for mechanical energy harvesting using nanohybrid of poly(vinylidene fluoride)

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