scholarly journals Carbon spheres@MnO2 core-shell nanocomposites with enhanced dielectric properties for electromagnetic shielding

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Huiya Wang ◽  
Zhifan Zhang ◽  
Chengjun Dong ◽  
Gang Chen ◽  
Yude Wang ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Electromagnetic Shielding ◽  
Core Shell ◽  
Carbon Spheres

Nitrogen-doped hollow carbon spheres with a wrinkled surface: their one-pot carbonization synthesis and supercapacitor properties

2016 ◽  
Vol 52 (78) ◽  
pp. 11693-11696 ◽  
Author(s):  
Lei Liu ◽  
Shi-Da Xu ◽  
Qing Yu ◽  
Feng-Yun Wang ◽  
Hui-Ling Zhu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Core Shell ◽  
Carbon Spheres ◽  
Melamine Formaldehyde ◽  
One Pot ◽  
Nitrogen Doped ◽  
Wrinkled Surface ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Nitrogen-doped hollow carbon spheres with a wrinkled surface were synthesized through direct pyrolysis of core–shell structured graphene oxide–resol@melamine formaldehyde composites.

Dielectric properties and thermal conductivity of epoxy resin composite modified by Zn/ZnO/Al2O3 core–shell particles

2018 ◽  
Vol 76 (8) ◽  
pp. 3957-3970 ◽  
Author(s):  
Yang Wang ◽  
Lingjie Zhu ◽  
Jun Zhou ◽  
Beibei Jia ◽  
Yingye Jiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Dielectric Properties ◽  
Epoxy Resin ◽  
Resin Composite ◽  
Core Shell ◽  
Epoxy Resin Composite ◽  
Shell Particles

Effect of Constituent Core-sizes on Microstructure and Dielectric Properties of BaTiO3@(0.6Ba-TiO3-0.4BiAlO3) Core-Shell Material

2018 ◽  
Vol 33 (3) ◽  
pp. 589-597 ◽  
Author(s):  
Millicent Appiah ◽  
Hua Hao ◽  
Wenjin Chen ◽  
Cheng Chen ◽  
Zhonghua Yao ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Core Shell ◽  
Shell Material

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.

Enhanced dielectric properties of conductive-dielectric composites by reducing particle size and core@shell method

2018 ◽  
Vol 11 (01) ◽  
pp. 1850010 ◽  
Author(s):  
Yuqiang Guo ◽  
Yifei Wang ◽  
Yaxuan Ren ◽  
Mingzhu Fu ◽  
Hongmei Ma ◽  
...  
Keyword(s):  
Particle Size ◽  
Dielectric Constant ◽  
Dielectric Properties ◽  
Dielectric Loss ◽  
Mass Fraction ◽  
Core Shell ◽  
Particle Sizes ◽  
Conductive Particle ◽  
Threshold Theory ◽  
Conductive Polyaniline

Based on the percolation threshold theory of conductive-dielectric composites, the dielectric constant can be improved more by adding a certain mass fraction of conductive particle into polymer matrix. However, the dielectric loss increases with the increasing mass fraction of conductive particle. In this paper, conductive Polyaniline (PANI) with different particle sizes is utilized to illustrate that reducing particle size can improve the dielectric properties. The dielectric constant is increased from 319 to 540, and dielectric loss is decreased from 2.34 to 0.85 when PANI with smaller particle size is used. Moreover, PANI coated with an insulating surfactant layer can further improve the dielectric properties, the experimental results show that the dielectric constant of the composite could be more than 1000, while the dielectric loss is 0.35 at 1[Formula: see text]KHz.

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