Significantly enhanced dielectric properties and energy storage density for high-k cyanate ester nanocomposites through building good dispersion of pristine carbon nanotubes in a matrix based on in situ non-covalent interaction with phenolphthalein poly(ether sulfone)

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 94635-94644 ◽  
Author(s):  
Lin Zhao ◽  
Li Yuan ◽  
Guozheng Liang ◽  
Aijuan Gu
Keyword(s):  
Carbon Nanotubes ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Cyanate Ester ◽  
Energy Storage Density ◽  
Storage Density ◽  
Covalent Interaction ◽  
Good Dispersion ◽  
High K

scholarly journals Double-layer core/shell-structured nanoparticles in polyarylene ether nitrile-based nanocomposites as flexible dielectric materials

RSC Advances ◽  
2017 ◽  
Vol 7 (47) ◽  
pp. 29306-29311 ◽  
Author(s):  
Yong You ◽  
Weihua Han ◽  
Ling Tu ◽  
Yajie Wang ◽  
Renbo Wei ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Double Layer ◽  
Dielectric Materials ◽  
Core Shell ◽  
Energy Storage Density ◽  
Storage Density ◽  
Polyarylene Ether Nitrile

The surface of BaTiO3 was modified with CPEN and NH2-CuPc, and the obtained CPEN-f-BT@CuPc reinforced the performance of PEN. The fabricated PEN-based nanocomposite shows stable dielectric properties and energy storage density from RT to 160 °C.

Effect of BaTiO3 nanowires on dielectric properties and energy storage density of polyimide composite films

2015 ◽  
Vol 41 (10) ◽  
pp. 13582-13588 ◽  
Author(s):  
M. Wang ◽  
W.L. Li ◽  
Y. Feng ◽  
Y.F. Hou ◽  
T.D. Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Composite Films ◽  
Energy Storage Density ◽  
Storage Density

Effect of La-doping on dielectric properties and energy storage density of lead-free Ba(Ti0.95Sn0.05)O3 ceramics

2020 ◽  
Vol 123 ◽  
pp. 110694 ◽  
Author(s):  
R. Kumar ◽  
I. Singh ◽  
R. Meena ◽  
K. Asokan ◽  
Balaji Birajdar ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Lead Free ◽  
Energy Storage Density ◽  
Storage Density ◽  
La Doping

Modulation and mechanism of spatial structure for multi-layer cyanate ester resin composites to achieve remarkably increased energy storage density and decreased dielectric loss

2020 ◽  
pp. 002199832095188
Author(s):  
Xiaobao Zhang ◽  
Li Yuan ◽  
Guozheng Liang ◽  
Aijuan Gu
Keyword(s):  
Energy Storage ◽  
Dielectric Loss ◽  
Spatial Structure ◽  
Breakdown Strength ◽  
Layer Structure ◽  
Single Layer ◽  
Cyanate Ester ◽  
Energy Storage Density ◽  
Spatial Structures ◽  
Storage Density

Overcoming sticky problems of large dielectric loss and poor breakdown strength ( Eb) is prerequisite of actual applications for high dielectric constant polymer composites. Herein, three kinds of multi-layer structure composites with different spatial structures (2MP-CE/CNT, CE/CNT-2MP-CE/CNT, MP-CE/CNT-MP) were prepared based on carbon nanotubes (CNTs), cyanate ester (CE) resin and mica paper (MP). Compared with traditional single-layer CE/CNT composite, multi-layer CE/CNT-2MP-CE/CNT composites, of which the middle layer is two pieces of MPs with a thickness of 60 µm, while both bottom and top layers are CE/CNT composite, simultaneously achieve 105 reduction in dielectric loss and 18.1 times increase in energy storage density ( Ue). Through modulating two sheets of MPs and CE/CNT as top and bottom layer, respectively, 2MP-CE/CNT composite with 60 μm MPs has the largest breakdown strength ( Eb), its Eb and Ue are severally about 7.1 and 19.5 times of those of CE/CNT composite. The relationship and mechanism between spatial structure and integrated performance such as dielectric properties, Eb and Ue of composites were systematically investigated. The attractive integrated performances of CE/CNT-2MP-CE/CNT and 2MP-CE/CNT composites are attributed to their unique composition and spatial structures, which bring special micro-capacitance and interfacial polarization, and thus leading to outstanding performances. Therefore, this investigation provides a strategy for getting desirable performances through building composites with specific spatial structure.

Dielectric properties and energy storage density in ZnO-doped Ba0.3Sr0.7TiO3 ceramics

2009 ◽  
Vol 35 (5) ◽  
pp. 2069-2075 ◽  
Author(s):  
Guixia Dong ◽  
Shuwang Ma ◽  
Jun Du ◽  
Jiandong Cui
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Energy Storage Density ◽  
Storage Density

Enhanced energy storage properties of barium titanate ceramics made from surface modified particles

2013 ◽  
Vol 03 (03) ◽  
pp. 1350023 ◽  
Author(s):  
Zhifu Liu ◽  
Zhiqiang Zhang ◽  
Faqiang Zhang ◽  
Yongxiang Li
Keyword(s):  
Electron Microscopy ◽  
Surface Modification ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Barium Titanate ◽  
Energy Storage Density ◽  
Storage Density ◽  
Energy Storage Properties ◽  
Surface Modified ◽  
Storage Properties

Surface modification of barium titanate particles has been carried out using a wet chemical method. The microstructural and dielectric properties of the ceramics made from surface modified particles were extensively investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and dielectric properties measurements. The breakdown strength increased by 69% and 117% for the Al 2 O 3 and B 2 O 3– SiO 2 modified ceramics, respectively. An energy storage density of up to 3.2 J/cm3 has been obtained. The suppression of grain boundary electron transport and reduction in pore defects lead to the energy storage properties enhancement of the modified ceramics. These results indicated that surface modification of ceramic particles is a promising approach to obtain dielectric ceramics with high energy storage density.

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