A high dielectric composite for energy storage application

Aboubakr, S.; Hajjaji, Abdelowahed; Rguiti, Mohamed; Benkhouja, K.; Courtois, Christian

doi:10.1016/j.ijhydene.2017.06.045

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…20,22 One alternative to overcoming this problem and increasing the local electric field on the ferroelectric particles in the piezoelectric composite is the addition of a third conductive phase dispersed in the composite matrix, such as conductive particles based on CNTs, graphene, and conductive polymers. [23][24][25][26] Sudan et al 27 for example, evaluated the effect of aluminum (Al) particles dispersion on the electric, dielectric, and piezoelectric properties of epoxy/PZT composites by analyzing the piezoelectric constant (d 33 ). The authors observed an increase in piezoelectric properties and a rise in dielectric constant for volume fractions of Al less than 0.13 vol.%.…”

Section: Introductionmentioning

confidence: 99%

Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes

Filho

Santos

Sanches

et al. 2023

J of Applied Polymer Sci

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The effects of multiwall carbon nanotubes (MWCNTs) on the electrical, dielectric, and piezoelectric properties of the ferroelectric ceramic/castor-oil polyurethane (PUR) composite films were evaluated. The three-phase piezoelectric composites were produced by keeping PUR concentration constant while varying lead zirconate titanate (PZT) volume fractions between 10 and 50 vol.%, at two MWCNT concentrations: above and below percolation threshold. The dc electrical conductivity analysis revealed that small amounts of MWCNTs dispersed within PUR/PZT composite films can significantly improve electrical and piezoelectric properties due to their ability to act as conductive bridges between PZT particles in the samples. Using Jonscher's power law, it was possible to determine that the electrical conduction in ac regime occurs through spatial charge hopping between states located within the piezoelectric composite. Analyzing the piezoelectric properties through the d 33 coefficient, it was found that PUR-MWCNT/PZT piezoelectric composite displayed higher d 33 values (20 pC/N) in comparison to the PUR/PZT two-phase composite (9.5 pC/N) for all PZT loadings. According to these results, the dispersion of MWCNT nanoparticles influences the poling effectiveness of the PZT particles and increases the d 33 coefficient of three-phase piezoelectric composites.

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Section: Introductionmentioning

confidence: 99%

Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes

Filho

Santos

Sanches

et al. 2023

J of Applied Polymer Sci

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“…Ceramic‐polymer composites with excellent dielectric property attracted intense research attention . They are applied in various fields such as capacitors, electromagnetic interference shielding, piezoelectric and pyroelectric sensors, and electrical actuators .…”

Section: Introductionmentioning

confidence: 99%

“…Ceramic-polymer composites with excellent dielectric property attracted intense research attention. 1,2 They are applied in various fields such as capacitors, electromagnetic interference shielding, piezoelectric and pyroelectric sensors, and electrical actuators. 3,4 Barium titanate (BT) is an excellent ferroelectric, piezoelectric and dielectric material, 5,6 and is widely used as ceramic fillers.…”

Section: Introductionmentioning

confidence: 99%

Dielectric property of modified barium titanate/polyamide 11 nanocomposites with different surfactants

Chen

Yang

et al. 2019

J of Applied Polymer Sci

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Barium titanate/polyamide 11 (BT/PA11) nanocomposites were prepared by modifying BT nanoparticles with dry surface modification process, which had well dispersion, high dielectric constant, and low dielectric loss. Various methods were reported to improve dispersion and compatibility with complex process and high cost. Herein, three surfactants [ γ‐aminopropyl triethoxy silane (KH550), sorbitan monostearate (SP60), and octadecyl phosphate ester (OPE)] were chosen to modify BT nanoparticles. Then modified‐BT nanoparticles were blended with PA11. The structure was characterized by Fourier transform infrared, scanning electron microscope, and wide angle X‐ray diffraction. Dielectric property was studied by broadband dielectric spectroscopy. The frequency dependence and temperature dependence of dielectric constant, dielectric loss, and dielectric modulus were analyzed. In general, dielectric property has strong frequency and temperature dependence. Furthermore, dielectric spectra shows that modified BT/PA11 nanocomposites have higher dielectric constant, lower dielectric loss, fewer interface polarization, and more dipole polarization. In contrast to three surfactants, OPE‐BT nanoparticles have better effects, whose dielectric constant increases from 19 to 28 at 1 Hz, and dielectric loss decreases from 0.36 to 0.23. Meanwhile, mechanical property was characterized by universal testing machine. In all, the work improves dispersion of BT nanoparticles and dielectric property with easy process and low cost. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47447.

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3D segregated architecture BaTiO3/polystyrene composites with enhanced dielectric constant fabricated via hot pressing core–shell polystyrene@BaTiO3 composite microspheres

Zhang

Jin

et al. 2020

J Mater Sci: Mater Electron

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A high dielectric composite for energy storage application

Cited by 10 publications

References 32 publications

Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes

Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes

Dielectric property of modified barium titanate/polyamide 11 nanocomposites with different surfactants

3D segregated architecture BaTiO3/polystyrene composites with enhanced dielectric constant fabricated via hot pressing core–shell polystyrene@BaTiO3 composite microspheres

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