The influence of crystalline transformation of Ba0.6Sr0.4TiO3 nanofibers/poly(vinylidene fluoride) composites on the energy storage properties by quenched technique

Liu, Shaohui; Xue, Songbai; Zhang, Wenqin; Zhai, Jiwei; Chen, Guohua

doi:10.1016/j.ceramint.2015.03.175

Cited by 29 publications

(12 citation statements)

References 31 publications

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“…Modulation of the local-electric-field distribution could thus be achieved by tuning the topological-structure of the multilayer composites [40]. At present, most of the studies on composite materials focus on the dispersion of perovskite fillers in polymer matrix and its application in energy storage [14,[41][42][43][44]. However, for energy harvesting applications, the composite material is required to be polarized, and the piezoelectric properties are excellent while maintaining the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Dielectric and energy harvesting properties of FeTiNbO₆/PVDF composites with reinforced sandwich structure

Hou

Zheng

et al. 2018

Polymer Composites

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Flexible dielectrics have been the major enabler for a number of applications in advanced electronic and electrical power systems. As an important flexible dielectric material, polymer composites are promising in raising the poor dielectric properties of neat polymer of current use. In this study, a class of topological‐structure modulated multilayer composites comprising a percolation layer (FeTiNbO6[FTN]/polyvinylidenefluoride [PVDF]) intercalated between two insulating layers (PVDF or BaTiO3[BT]/PVDF) are assembled into sandwich structures by a facile hot‐pressing method. For the prepared sandwich structure, FTN/PVDF film acts as a semiconductive layer to raise dielectric permittivity, while two insulating layers at top and bottom of composite are used to suppress conductivity and dielectric loss. Resulted from the unique performances of the FTN/PVDF film and strong interfacial polarization, the sandwich composite possesses improved dielectric and insulation properties. Moreover, compared with FTN/PVDF, the BT20‐FTN40‐BT20 has lower dielectric loss and higher insulation properties, and after poling at 20 kV/mm for 6 h, it exhibits excellent vibration energy harvesting properties in cantilever mode. Thus, a piezoelectric energy harvester constructed from this sandwich composite can be used for self‐driving wireless sensors. POLYM. COMPOS., 40:E570–E578, 2019. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Dielectric and energy harvesting properties of FeTiNbO₆/PVDF composites with reinforced sandwich structure

Hou

Zheng

et al. 2018

Polymer Composites

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“…At the same time, the nanocomposites achieve the highest η of 53.7%, which is ~5.5% higher than that of pure PVDF (η~48.17% at 420 kV mm −1 ). Some related results have been added in Table 2 to make the comparison [18,27,[56][57][58]. Besides dielectric constants, we also focus on the breakdown field strength and energy storage density for comparison.…”

Section: Resultsmentioning

confidence: 99%

Electrospinning Synthesis of Na0.5Bi0.5TiO3 Nanofibers for Dielectric Capacitors in Energy Storage Application

et al. 2022

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Dielectric composites based on ferroelectric ceramics nanofibers are attracting increasing attention in capacitor application. In this work, the sol–gel method and electrospinning technology are utilized to prepare one-dimensional Na0.5Bi0.5TiO3 (NBT) nanofibers, and the influence of electrospinning process parameters such as spinning voltage, liquid supply rate, and collector speed on the morphology and structure of nanofibers are systematically explored. The final optimized parameters include the applied voltage of 20 kV, the solution flow rate of 1 mL/h, and the collector’s rotation speed of 1500 rpm. The optimized NBT nanofibers are introduced into the PVDF polymer matrix for energy storage application. Owing to the enhanced interfacial polarization between PVDF matrix and NBT nanofibers with a high aspect ratio, the NBT–PVDF nanocomposites achieve a high discharge energy density of 14.59 J cm−3 and an energy efficiency of 53.69% at 490 kV mm−1, which are higher than those of pure PVDF, i.e., 10.26 J cm−3 and 48.17% at 420 kV mm−1, respectively. The results demonstrate that the strategy of synthesizing NBT nanofibers using the electrospinning method is of great potential for high-performance dielectric capacitor application.

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“…[32] To resolve this problem, there should be combined high permittivity and the high breakdown strength advantages of the ceramic-polymer materials. [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47] To prepare this kind of high dielectric constant and breakdown strength materials, the ceramics having high dielectric constant are introduced into the polymer materials with good mechanical strength. Past decades, a large number of researchers' great efforts have been made to synthesize this kind of ceramic/polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Study of CNT Intercalated Bi₂O₃/PVDF Composite for Super Capacitors Applications

Yadav

Meena

et al. 2021

Macromolecular Symposia

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Carbon nanotube (CNT) intercalated‐bismuth oxide (CNT‐Bi2O3)/polyvinylidenefluoride (PVDF) composites are synthesized via sonication and roasting process. The phase structure, bonding, and morphology of CNT‐Bi2O3/PVDF composite are characterized using X‐ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), and scanning electron microscopy (SEM). The capacitance and dielectric constant of the composite electrodes are studied by impedance analyzer. The capacitance and stability of CNT‐Bi2O3/PVDF composite are found to be increased on increasing concentration of Bi2O3 in PVDF composite. These results show that CNT‐Bi2O3/PVDF composite is a very promising electrode material for high‐performance super capacitors.

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The influence of crystalline transformation of Ba0.6Sr0.4TiO3 nanofibers/poly(vinylidene fluoride) composites on the energy storage properties by quenched technique

Cited by 29 publications

References 31 publications

Dielectric and energy harvesting properties of FeTiNbO₆/PVDF composites with reinforced sandwich structure

Dielectric and energy harvesting properties of FeTiNbO₆/PVDF composites with reinforced sandwich structure

Electrospinning Synthesis of Na0.5Bi0.5TiO3 Nanofibers for Dielectric Capacitors in Energy Storage Application

Study of CNT Intercalated Bi₂O₃/PVDF Composite for Super Capacitors Applications

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The influence of crystalline transformation of Ba0.6Sr0.4TiO3 nanofibers/poly(vinylidene fluoride) composites on the energy storage properties by quenched technique

Cited by 29 publications

References 31 publications

Dielectric and energy harvesting properties of FeTiNbO6/PVDF composites with reinforced sandwich structure

Dielectric and energy harvesting properties of FeTiNbO6/PVDF composites with reinforced sandwich structure

Electrospinning Synthesis of Na0.5Bi0.5TiO3 Nanofibers for Dielectric Capacitors in Energy Storage Application

Study of CNT Intercalated Bi2O3/PVDF Composite for Super Capacitors Applications

Contact Info

Product

Resources

About

Dielectric and energy harvesting properties of FeTiNbO₆/PVDF composites with reinforced sandwich structure

Dielectric and energy harvesting properties of FeTiNbO₆/PVDF composites with reinforced sandwich structure

Study of CNT Intercalated Bi₂O₃/PVDF Composite for Super Capacitors Applications