Core-satellite ultra-small hybrid Ni@BT nanoparticles: A new route to enhanced energy storage capability of PVDF based nanocomposites

被引：46

作者：

Chen, Guanliang ^{[1
]}

Lin, Xiujuan ^{[1
]}

Li, Jianan ^{[1
]}

Huang, Shifeng ^{[1
]}

Cheng, Xin ^{[1
]}

机构：

[1] Univ Jinan, Shandong Prov Key Lab Preparat & Measurement Bldg, Jinan 250022, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2020年 / 513卷 / 513期

基金：

中国国家自然科学基金;

关键词：

Hybrid Ni@BT nanoparticles; Nanocomposites; Dielectric properties; Discharged energy density; POLY(VINYLIDENE FLUORIDE) NANOCOMPOSITES; HIGH DIELECTRIC-CONSTANT; POLYMER NANOCOMPOSITES; BREAKDOWN STRENGTH; DENSITY; COMPOSITES; PERFORMANCE; FABRICATION; NANOFIBERS; CAPACITORS;

D O I：

10.1016/j.apsusc.2020.145877

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polymer-based composites comprising of high dielectric constant ceramic nanoparticles are widely used in dielectric capacitors due to their excellent energy storage and processing properties. In this study, ultra-small Ni nanoparticles were used to fabricate core-satellite structured hybrid Ni@BT nanoparticles. Compared with BT/PVDF composites, the Ni@BT/PVDF nanocomposites exhibited the enhanced energy storage properties due to the low electric conductivity, small dielectric loss and improved breakdown strength. The maximum discharged energy density reached 9.55 J/cm(3) for nanocomposites with 3 vol% Ni@BT at the electric field of 350 kV/mm, which was nearly eight times of commercial BOPP (1.2 J/cm(3) at 640 kV/mm) and was around 208% compared to the pristine PVDF (4.58 J/cm(3) at 340 kV/mm). The improved energy density of the nanocomposites could be attributed to the Coulomb-blockade effect of the introduced ultra-small Ni nanoparticles exactly. This work provides an effective approach to improve the energy storage property of dielectric nanocomposites.

引用

页数：10

共 2 条

[1] Enhancing electrical energy storage capability of dielectric polymer nanocomposites via the room temperature Coulomb blockade effect of ultra-small platinum nanoparticles
Wang, Liwei
Huang, Xingyi
Zhu, Yingke
Jiang, Pingkai
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2018, 20 (07) : 5001 - 5011
[2] Energy Storage Capability of PVDF-Based Nanocomposites Significantly Enhanced by BaTiO3@BaxSr1-xTiO3 with Multi-Layer Gradient Core-Shell Structure Nanofillers
Yi, Zhihui
Wang, Zhuo
Wu, Dan
Xue, Ying
ACS APPLIED ENERGY MATERIALS, 2022, 5 (11) : 14559 - 14569

← 1 →