Smart, lightweight, flexible NiO/poly(vinylidene flouride) nanocomposites film with significantly enhanced dielectric, piezoelectric and EMI shielding properties

Dutta, Biplab; Bose, Navonil; Kar, Epsita; Das, Sukhen; Mukherjee, Sampad

doi:10.1007/s10965-017-1396-z

Cited by 39 publications

(33 citation statements)

References 40 publications

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“…The high intensity peak of GO was observed at 11.0 ο shown in figure 3a, similar observation was made by subash V S., 2020 [22]. The XRD pattern of NiO nanoparticles derived from Sterculia foetida leaf extract with 2θ values 37.01 ο, 43.14 ο, 62.70 ο, 75.18 ο and 79.2 ο indexed to the (101), (012),( 110),( 113) and (202) planes of crystalline phase of rhombohedral nickel oxide shown in figure 3b and the average particle size was 15 nm and matched with the JCPDS card no 441159 [23]. The crystalline size of NiO@GO nanocomposite was 12 to 50 nm found using Debye-Scherrer formula.…”

Section: Pxrdsupporting

confidence: 60%

Dye degradation efficiency of green synthesized NiO@GO nanocomposite with biological application

Subashini¹,

Prakash²,

Devi³

et al. 2022

J. Phys.: Conf. Ser.

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The photocatalytic activity of green synthesized nickel oxide nanoparticles derived using Sterculia foetida leaf extract was examined by introducing into graphene oxide (GO). Graphene oxide has porous nature which might enlarge the photocatalytic execution of NiO nanoparticles. NiO nanoparticles (NiO NPs) were prepared by solution combustion method and introduced into graphene oxide (GO) synthesized by Hummers method to form NiO@GO nanocomposite. Various techniques were used for the material characterization of the above synthesized compounds such as UV, FTIR, Powder X-ray diffraction (PXRD), Transmission electron microscopy (TEM). The photocatalytic execution of NiO@GO nanocomposite on deterioration of Methylene blue (MB) and Malachite Green (MG) have been examined and the results indicate that the GO plays a critical part in the improvement of photocatalytic execution. Antibacterial activity has been carried out against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The synthesized NiO@GO nanocomposite accomplishes a most extreme decay efficiency of 98% for Methylene blue than Malachite green under UV-light.

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Section: Pxrdsupporting

confidence: 60%

Dye degradation efficiency of green synthesized NiO@GO nanocomposite with biological application

Subashini¹,

Prakash²,

Devi³

et al. 2022

J. Phys.: Conf. Ser.

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“…observed an F( β ) of 85% at a critical nickel oxide (NiO) loading of 0.75 wt% in PVDF. [ 317 , 318 ] The NiO NPs were hexagonal shaped with a mean size of 44 nm and were synthesized via the hydrothermal method. The interactions between negatively charged NiO NPs and positively charged CH 2 groups in PVDF led to the alignment of TTT conformation in PVDF, resulting in β phase nucleation.…”

Section: Piezoelectric Polymer Nanocompositesmentioning

confidence: 99%

“…Dutta et al observed an F(𝛽) of 85% at a critical nickel oxide (NiO) loading of 0.75 wt% in PVDF. [317,318] The NiO NPs were hexagonal shaped with a mean size of 44 nm and were synthesized via the hydrothermal method. The interactions between [303] Copyright 2017, Elsevier B.V.…”

Section: Nanocomposites Based On Non-conducting Fillersmentioning

confidence: 99%

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

et al. 2021

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Piezoelectric materials are widely referred to as "smart" materials because they can transduce mechanical pressure acting on them to electrical signals and vice versa. They are extensively utilized in harvesting mechanical energy from vibrations, human motion, mechanical loads, etc., and converting them into electrical energy for low power devices. Piezoelectric transduction offers high scalability, simple device designs, and high-power densities compared to electro-magnetic/static and triboelectric transducers. This review aims to give a holistic overview of recent developments in piezoelectric nanostructured materials, polymers, polymer nanocomposites, and piezoelectric films for implementation in energy harvesting. The progress in fabrication techniques, morphology, piezoelectric properties, energy harvesting performance, and underpinning fundamental mechanisms for each class of materials, including polymer nanocomposites using conducting, non-conducting, and hybrid fillers are discussed. The emergent application horizon of piezoelectric energy harvesters particularly for wireless devices and self-powered sensors is highlighted, and the current challenges and future prospects are critically discussed.

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“…Specifically, the development of self-powered e-skin has been initiated in the last couple of years due to its vast potential applications in remote mechanosensing to mimick the human skin. 17−20 Metal oxide nanoparticles including NiO, 38 CuO, 24 ZnO, 21 and CoFe 2 O 4 39,40 have great potential to enhance the β phase fraction in a PVDF composite, which can be exploited to fabricate piezoelectric nanogenerators as well as e-skin. Different metal oxide-based magnetoelectric polymer composites 39,40 were also studied for enhancement of piezoelectric and ferroelectric properties.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The nickel oxide nanoparticles were synthesized using a hydrothermal method. 38 Details of the hydrothermal procedure for synthesis of metal oxide nanomaterials can be found elsewhere. 24 Silica-coated nickel oxide nanoparticles (NiO@SiO 2 ) were synthesized by the modified Stober 41 method, a widely used method for synthesis of silica nanoparticles.…”

Section: ■ Introductionmentioning

confidence: 99%

NiO@SiO₂/PVDF: A Flexible Polymer Nanocomposite for a High Performance Human Body Motion-Based Energy Harvester and Tactile e-Skin Mechanosensor

Dutta

Kar

Bose³

et al. 2018

ACS Sustainable Chem. Eng.

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108

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Advancement in self-powered portable and wearable electronics mostly depends on the realization of an efficient human activity-based energy harvester and electronic skin (e-skin)-mimicking tactile mechanosensing property of natural human skin. A human activity-based energy harvester can supply power to flexible, potable, electronics equipment associated with the human body, whereas a tactile e-skin mechanosensor can precisely detect static and dynamic pressure stimuli. Here, we report development of a NiO@ SiO 2 /PVDF nanocomposite, a facile piezoelectric material possessing superior flexibility that is light in weight and has low cost, which is an excellent choice for the next generation mechanical energy harvester and tactile e-skin sensors. The fabricated piezoelectric nanogenerator (PNG) comprising nanocomposites shows very promising output under application of the biomechanical force on it. PNG15 exhibits high output voltage (53 V), adequate current density (∼0.3 μA/cm 2 ), high power density (685 W/m 3 ), and superior conversion efficiency (13.86%). Gentle human finger imparting onto the PNG produces enough electric power to directly illuminate as many as 85 numbers of commercial LEDs and charge a 2.2 μF capacitor up to 22 V within 450 s. The nanogenerator is successfully exploited to generate electrical power by converting mechanical energy from different human activities. We also demonstrate the high mechanosensing capability of a thin, flexible e-skin sensor based on NiO@SiO 2 /PVDF nanocomposites. Because of the high sensitivity, the fabricated e-skin sensor can detect precisely the spatiotemporal distribution of pressure stimuli in static and dynamic conditions. The e-skin sensor is capable of sensing very low level pressure stimuli with a short response time. The promising role of e-skin in real time healthcare monitoring is assessed where a hand-data glove attached with self-powered e-skin sensors can distinguish movements of different fingers. The spatial distribution of pressure stimuli is also resolved by a sensing matrix containing e-skin sensors as pixels. Moreover the operation mechanical stability of the composites is very high which enables this composite to be used in e-skin sensor and energy harvester applications. Our work verifies the scope of NiO@SiO 2 /PVDF nanocomposites in nanogenerators and e-skin applications which are essential components in the field of wearable self-powered electronics, healthcare monitoring, and artificial intelligence attached to a human body.

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Smart, lightweight, flexible NiO/poly(vinylidene flouride) nanocomposites film with significantly enhanced dielectric, piezoelectric and EMI shielding properties

Cited by 39 publications

References 40 publications

Dye degradation efficiency of green synthesized NiO@GO nanocomposite with biological application

Dye degradation efficiency of green synthesized NiO@GO nanocomposite with biological application

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

NiO@SiO₂/PVDF: A Flexible Polymer Nanocomposite for a High Performance Human Body Motion-Based Energy Harvester and Tactile e-Skin Mechanosensor

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Smart, lightweight, flexible NiO/poly(vinylidene flouride) nanocomposites film with significantly enhanced dielectric, piezoelectric and EMI shielding properties

Cited by 39 publications

References 40 publications

Dye degradation efficiency of green synthesized NiO@GO nanocomposite with biological application

Dye degradation efficiency of green synthesized NiO@GO nanocomposite with biological application

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

NiO@SiO2/PVDF: A Flexible Polymer Nanocomposite for a High Performance Human Body Motion-Based Energy Harvester and Tactile e-Skin Mechanosensor

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NiO@SiO₂/PVDF: A Flexible Polymer Nanocomposite for a High Performance Human Body Motion-Based Energy Harvester and Tactile e-Skin Mechanosensor