Ultrafast Discharge and High-Energy-Density of Polymer Nanocomposites Achieved via Optimizing the Structure Design of Barium Titanates

Pan, Zhongbin; Yao, Lingmin; Zhai, Jiwei; Yang, Ke; Shen, Bo; Wang, Haitao

doi:10.1021/acssuschemeng.7b00080

Cited by 106 publications

(77 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the interesting properties of BT, especially the nano‐structured ones, polymers nanocomposites containing BT nanoparticles have been studied using different synthetic polymers to prepare high‐ k flexible materials for different applications such as pyroelectric sensors, nonvolatile memories, and surface acoustic wave devices; the studied polymers included poly(vinylidene fluoride), fluoro‐polydopamine, oligothiophene polymer, polymethylmethacrylate, epoxy; poly(vinylidenefluoride‐ co ‐hexafluoropropylene), and interpenetrating polyurethane polymer.…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11][12][13] Barium titanate is characterized not only by its variable electrical and optical properties, but also by its non-toxic nature in contrast with the environmental burdened ferroelectric Pb-based ceramics. [14][15][16] Due to the interesting properties of BT, especially the nano-structured ones, polymers nanocomposites containing BT nanoparticles have been studied using different synthetic polymers to prepare high-k flexible materials for different applications such as pyroelectric sensors, nonvolatile memories, and surface acoustic wave devices [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] ; the studied polymers included poly(vinylidene fluoride), fluoro-polydopamine, oligothiophene polymer, polymethylmethacrylate, epoxy; poly(vinylidenefluoride-cohexafluoropropylene), and interpenetrating polyurethane polymer.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel cellulose nanofibers/barium titanate nanoparticles nanocomposites and their electrical properties

Hassan

Ali

Salama

et al. 2018

J of Physical Organic Chem

View full text Add to dashboard Cite

Green nanocomposite films from cellulose nanofibers/barium titanate (CNF/BT) with high homogeneity were successfully prepared by doping different ratio of BT nanoparticles (2.5 to 25 wt%) into CNF. Scanning electron microscope images showed homogenous distribution of BT in the CNF matrix. Thermogravimetric analysis results showed good thermal stability of the prepared nanocomposites. X‐ray diffraction analysis showed that the tetragonality of BT grains was retained in the composite samples. Addition of BT nanoparticles to CNF resulted in decreasing the tensile strength properties of the films. The dielectric properties were analyzed in detail with respect to frequency ranged from 0.1 Hz to 5 MHz, temperature ranged from 289 to 373 K, and BT loading. The high k values of the CNF/BT films were attributed to spontaneous polarization of BT particles. The dielectric constant of the nanocomposites increased by addition of BT nanoparticles up to 5 wt% and decreased afterwards. Hopping ionic conduction was proved as a conduction mechanism of the prepared nanocomposites. The activation energy of the conduction ranged from 0.4 to 0.08 eV. Moreover, the values of activation energy decreased as the doping level of BT nanoparticles increased.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel cellulose nanofibers/barium titanate nanoparticles nanocomposites and their electrical properties

Hassan

Ali

Salama

et al. 2018

J of Physical Organic Chem

View full text Add to dashboard Cite

show abstract

“…As shown in the inset of Figure A, the peak current almost increases linearly from 0.2 A to 0.7 A with electric field increasing from 400 kV/cm to 1400 kV/cm, which is consistent with the theoretical Equation . According to the pulsed discharge current curve, the W dis of the film is calculated as:

W_{italicdis} = R \int i^{2} ()(, t) d t false/ V

where i ( t ), R , and V are the current, resistance, and volume of the film, respectively . Figure B shows the time and electric field dependence of the discharge energy‐storage density ( W dis ) for the PLZT film.…”

Section: Resultsmentioning

confidence: 99%

“…where i(t), R, and V are the current, resistance, and volume of the film, respectively. 29 Figure 4B shows the time and electric field dependence of the discharge energy-storage density (W dis ) for the PLZT film. Evidently, the W dis gradually increases with the increase in electric field and reaches a value of 15.8 J/cm 3 under 1400 kV/cm.…”

Section: Resultsmentioning

confidence: 99%

Flexible antiferroelectric thick film deposited on nickel foils for high energy‐storage capacitor

Luo

Hao

et al. 2019

J Am Ceram Soc

Self Cite

View full text Add to dashboard Cite

Flexible antiferroelectric (AFE) Pb0.94La0.04Zr0.97Ti0.03O3 (PLZT) thick‐film capacitors were fabricated on nickel foil substrates using sol‐gel method. The thick PLZT film shows pure perovskite phase with dense microstructure. The discharge energy‐storage properties of the thick PLZT film are directly evaluated by the resistance‐inductance‐capacitance (RLC) circuit. The maximum value of the discharge energy‐storage density (Wdis) is 15.8 J/cm3 at 1400 kV/cm and 90% of the corresponding energy is released in a short time of about 250 ns. In addition, the Wdis and discharge time could be adjusted by the bent radius of the film, which provides a simple and feasible solution for the regulation of the electrical performance. Furthermore, the flexible AFE film exhibits good mechanical properties under cycling tests with bending radii down to 2.5 mm and 1500 rounds. This work shows a critical significance in fabricating flexible AFE capacitors for application in modern electronics and electrical power systems.

show abstract

“…In recent years, various nonconducting nanoparticles with different dimensions have been introduced into polymer matrix. These nanoparticles mainly include high‐ε r ceramic nanoparticles such as BaTiO 3 , TiO 2 , ZrO 2 , (Ba x Sr 1− x )TiO 3 , CaCu 3 Ti 4 O 12 , Pb(Zr x Ti 1− x )O 3 , naturally nanosized silicate minerals (attapulgite, montmorillonite, clay), and other materials with excellent electrical and thermal properties, such as boron nitride …”

Section: High Energy Density Ceramics/polymer Nanocompositesmentioning

confidence: 99%

Superior Energy Storage Performances of Polymer Nanocomposites via Modification of Filler/Polymer Interfaces

Zhang

Dong

et al. 2018

Adv Materials Inter

178

112

View full text Add to dashboard Cite

systems, they have numerous applications in various fields as pulsed power supply technology, [8,9] energy harvesting, [10][11][12] inverters, [13][14][15] and passive elements, [16][17][18] toward both defense and civil industries. Excellent energy storage capabilities of dielectric materials including high discharged energy density and high energy efficiency have long been eagerly pursued to meet the challenges and needs of the rapid development of modern industry, i.e., the low energy density of current dielectric materials results in overburdened capacitor volume and weight in electrical power systems. The energy storage performances of dielectric materials are usually multiply determined by three major electrical and dielectric parameters, which are categorized as:1) The breakdown strength E b ;2) The relative permittivity (also called dielectric constant) ε r or electric displacement D (the electric displacement is related to the polarization P by D = P + ε 0 E, here ε 0 = 8.85 × 10 −12 F m −1 is the vacuum permittivity); 3) The dielectric loss tanδ.In general, as illustrated in Figure 1, the discharged energy density of dielectric materials can be determined aswhere E is the applied electric field, and the energy efficiency is calculated by Dielectric polymer nanocomposites by integration of high-E b polymer matrix and high-D(ε r ) ceramic fillers have shown great potential for dielectric and energy storage applications in modern electronic and electrical systems. Interface between ceramic fillers and polymer matrix is considered as a predominant factor to determine the dielectric performances of the nanocomposites. This review analyzes the influence of the interface on dielectric responses and breakdown strength in the nanocomposites, and discusses the viability of current interface engineering strategies in improving their energy storage capabilities. Two scopes of current interface modification approaches are focused from both structural and functional considerations in the dielectric ceramics/polymer nanocomposites: first, the organic/inorganic interface compatibility can be modified to generate homogeneous dispersion of ceramic nanoparticles in polymer matrix, which is the premise of fully realizing the synergistic combination of advantages of polymer and ceramic fillers; second, regulated local electrical and dielectric behaviors in interface region enable the enhancement of dielectric properties (both high dielectric constant and high breakdown strength) in resultant nanocomposites. In the last part, some present challenges and future perspectives are proposed to utilize the interface strategy for developing high energy density ceramics/ polymer nanocomposites for dielectric and energy storage applications.

show abstract

Ultrafast Discharge and High-Energy-Density of Polymer Nanocomposites Achieved via Optimizing the Structure Design of Barium Titanates

Cited by 106 publications

References 71 publications

Novel cellulose nanofibers/barium titanate nanoparticles nanocomposites and their electrical properties

Novel cellulose nanofibers/barium titanate nanoparticles nanocomposites and their electrical properties

Flexible antiferroelectric thick film deposited on nickel foils for high energy‐storage capacitor

Superior Energy Storage Performances of Polymer Nanocomposites via Modification of Filler/Polymer Interfaces

Contact Info

Product

Resources

About