Enhancement of piezoelectricity in polymer PVDF based on molecular chain structure

Zhou, Wenjing; Lin, Ying-Hsi; Zou, Kang; Zhou, Can; Gong, Xuetian; Cao, Yang; Jiang, Shenglin

doi:10.1007/s10854-021-07250-1

Cited by 11 publications

(5 citation statements)

References 44 publications

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“…As shown in Figure 2A, a new peak is observed in the high‐resolution spectra of the S 2p peak at 169±0.2 eV in the crosslinked P(VDF‐CTFE‐DB) film compared to the blended film, attributed to thioether (C−S−C) bonds formed by the click reaction [28] . Additionally, Figure S2 presents the high‐resolution spectra of C 1s for the pristine, blended, and crosslinked P(VDF‐CTFE‐DB) films, with peaks at 284.8±0.2 eV, 286.8±0.2 eV, and 291±0.2 eV corresponding to C−H/C−C, C−O, and CF 2 , respectively [29,30] . The peak at 289±0.2 eV binding energy was assigned to the O−C=O peak [31] .…”

Section: Figurementioning

confidence: 95%

“…[28] Additionally, Figure S2 presents the high-resolution spectra of C 1s for the pristine, blended, and crosslinked P(VDF-CTFE-DB) films, with peaks at 284.8 � 0.2 eV, 286.8 � 0.2 eV, and 291 � 0.2 eV corresponding to CÀ H/CÀ C, CÀ O, and CF 2 , respectively. [29,30] The peak at 289 � 0.2 eV binding energy was assigned to the OÀ C=O peak. [31] Although the peak intensity of the pristine P(VDF-CTFE-DB) at 289 � 0.2 eV was relatively weak, the intensity of the peak increased in the blended and crosslinked P(VDF-CTFE-DB) film, indicating that the crosslinkers were incorporated into the crosslinked P(VDF-CTFE-DB) film.…”

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confidence: 99%

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Elastic Relaxor Ferroelectric by Thiol‐ene Click Reaction

Li,

Wang,

Gao

et al. 2024

Angewandte Chemie

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As ferroelectrics hold significance and application prospects in wearable devices, the elastification of ferroelectrics becomes more and more important. Nevertheless, achieving elastic ferroelectrics requires stringent synthesis conditions, while the elastification of relaxor ferroelectric materials remains unexplored, presenting an untapped potential for utilization in energy storage and actuation for wearable electronics. The thiol‐ene click reaction offers a mild and rapid reaction platform to prepare functional polymers. Therefore, we employed this approach to obtain an elastic relaxor ferroelectric by crosslinking an intramolecular carbon‐carbon double bonds (CF=CH) polymer matrix with multiple thiol groups via a thiol‐ene click reaction. The resulting elastic relaxor ferroelectric demonstrates pronounced relaxor‐type ferroelectric behaviour. This material exhibits low modulus, excellent resilience and fatigue resistance, maintaining a stable ferroelectric response even under strains of up to 70%. This study introduces a straightforward and efficient approach for the construction of elastic relaxor ferroelectrics, thereby expanding the application possibilities in wearable electronics.

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Section: Figurementioning

confidence: 95%

mentioning

confidence: 99%

Elastic Relaxor Ferroelectric by Thiol‐ene Click Reaction

Li,

Wang,

Gao

et al. 2024

Angewandte Chemie

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“…Alternatively, using the selective adsorption of chiral Cys on the high Miller index surface of gold NPs, vein‐like gold NPs were prepared with chiral plasmonic response and good enantioselectivity for the electrocatalytic activity of Trp oxidation. [ 218 ] When L‐Cys‐Au NPs were used as catalysts, the oxidation of D‐Trp produced a higher peak current (29.12 µA) and a lower peak potential (0.716 V) compared with L‐Trp (14.87 µA, 0.736 V). A series of experimental results showed that this pulsed gold oxide has good enantioselectivity for the electrocatalytic oxidation of Trp enantiomers.…”

Section: Selective Catalysis Activity Of Chiral Nanomaterialsmentioning

confidence: 99%

Biomimetic Chiral Nanomaterials with Selective Catalysis Activity

Cao,

Yang,

Kim

et al. 2024

Advanced Science

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Chiral nanomaterials with unique chiral configurations and biocompatible ligands have been booming over the past decade for their interesting chiroptical effect, unique catalytical activity, and related bioapplications. The catalytic activity and selectivity of chiral nanomaterials have emerged as important topics, that can be potentially controlled and optimized by the rational biochemical design of nanomaterials. In this review, chiral nanomaterials synthesis, composition, and catalytic performances of different biohybrid chiral nanomaterials are discussed. The construction of chiral nanomaterials with multiscale chiral geometries along with the underlying principles for enhancing chiroptical responses are highlighted. Various biochemical approaches to regulate the selectivity and catalytic activity of chiral nanomaterials for biocatalysis are also summarized. Furthermore, attention is paid to specific chiral ligands, materials compositions, structure characteristics, and so on for introducing selective catalytic activities of representative chiral nanomaterials, with emphasis on substrates including small molecules, biological macromolecule, and in‐site catalysis in living systems. Promising progress has also been emphasized in chiral nanomaterials featuring structural versatility and improved chiral responses that gave rise to unprecedented chances to utilize light for biocatalytic applications. In summary, the challenges, future trends, and prospects associated with chiral nanomaterials for catalysis are comprehensively proposed.

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“…Approaches like annealing, stretching, and poling increase the piezoelectric coefficient of PVDF without disturbing its original properties. [29,59] Poling is the enhancement of the dipole moment of material by reorientating crystallites [60] (Figure 4d). Two procedures commonly employed for poling are the direct and corona poling methods.…”

Section: Spectroscopic Characterization For Improved β Phase Of Pvdfmentioning

confidence: 99%

Polyvinylidene Fluoride Nanocomposites as Piezoelectric Nanogenerator: Properties, Fabrication and Market Applications

Mukherjee,

Dasgupta Ghosh,

Ghosh

et al. 2024

Adv Eng Mater

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Depletion of fossil fuels and increase in pollution through chemical batteries trigger the development of self‐powered devices based on flexible piezoelectric nanogenerators. Biocompatible piezoelectric PVDF nanocomposites merged with piezoelectric fillers like ZnO, KNN, and BaTiO3 reproduce amended piezoelectric current, contributing to the safe application as biosensors and flexible industrial devices. Optimized loading, precise selection, and variating the surface chemistry of piezoelectric filler, along with fabrication schemes comprising different structural configurations of composites, considerably influence its potential for application as energy harvester. Also, optimized processing condition upgrades dielectric constant, energy storage density, and reduces dielectric loss, thereby plummeting energy dissipation even after prolonged usage. Consequently, this paper reviews the principles, properties, fabrication techniques, and market application of PVDF composites. A detailed relationship of significant electrical properties of PVDF composites with its fabrication methods and piezoelectric parameters of fabricated PVDF composites with reported real‐life wearable, implantable, and industrial‐based portable piezoelectric devices are discussed in detail along with tabulated data for clear understanding of structure‐property relationship. Again, market strategy for establishing flexible PVDF composite as a piezoelectric nanogenerator has been discussed. An in‐depth knowledge is provided for procuring affordable futuristic large‐scale PVDF‐based nanogenerators exhibiting affordable market worth.This article is protected by copyright. All rights reserved.

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Enhancement of piezoelectricity in polymer PVDF based on molecular chain structure

Cited by 11 publications

References 44 publications

Elastic Relaxor Ferroelectric by Thiol‐ene Click Reaction

Elastic Relaxor Ferroelectric by Thiol‐ene Click Reaction

Biomimetic Chiral Nanomaterials with Selective Catalysis Activity

Polyvinylidene Fluoride Nanocomposites as Piezoelectric Nanogenerator: Properties, Fabrication and Market Applications

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