典型文献
Chemical adsorption on 2D dielectric nanosheets for matrix free nanocomposites with ultrahigh electrical energy storage
文献摘要：
Relaxor ferroelectric polymers display great potential in capacitor dielectric applications because of their excellent flexibility,light weight,and high dielectric constant.However,their electrical energy storage capacity is limited by their high conduction losses and low dielectric strength,which primarily originates from the impact-ionization-induced electron multiplication,low mechanical modulus,and low thermal conductivity of the dielectric polymers.Here a matrix free strategy is developed to effectively suppress electron multiplication effects and to enhance mechanical modulus and thermal conductivity of a dielec-tric polymer,which involves the chemical adsorption of an electron barrier layer on boron nitride nanosheet surfaces by chemically adsorbing an amino-containing polymer.A dramatic decrease of leak-age current(from 2.4×1 0-6 to 1.1×10-7 A cm-2 at 100 MV m-1)and a substantial increase of break-down strength(from 340 to 742 MV m-1)were achieved in the nanocompostes,which result in a remarkable increase of discharge energy density(from 5.2 to 31.8 J cm-3).Moreover,the dielectric strength of the nanocomposites suffering an electrical breakdown could be restored to 88％of the original value.This study demonstrates a rational design for fabricating dielectric polymer nanocomposites with greatly enhanced electric energy storage capacity.
文献关键词：
中图分类号：
作者姓名：
Jie Chen;Zhonghui Shen;Qi Kang;Xiaoshi Qian;Shengtao Li;Pingkai Jiang;Xingyi Huang
作者机构：
Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing,Department of Polymer Science and Engineering,The State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Center of Smart Materials and Devices,Wuhan University of Technology,Wuhan 430070,China;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University,Xi'an 710054,China
文献出处：
引用格式：
[1]Jie Chen;Zhonghui Shen;Qi Kang;Xiaoshi Qian;Shengtao Li;Pingkai Jiang;Xingyi Huang-.Chemical adsorption on 2D dielectric nanosheets for matrix free nanocomposites with ultrahigh electrical energy storage)[J].科学通报（英文版）,2022(06):609-618
A类：
nanocompostes
B类：
Chemical,adsorption,2D,dielectric,nanosheets,matrix,free,nanocomposites,ultrahigh,electrical,energy,storage,Relaxor,ferroelectric,polymers,display,potential,capacitor,applications,because,their,excellent,flexibility,light,weight,constant,However,capacity,limited,by,conduction,losses,low,strength,which,primarily,originates,from,impact,ionization,induced,electron,multiplication,mechanical,modulus,thermal,conductivity,Here,strategy,developed,effectively,suppress,effects,involves,barrier,layer,boron,nitride,surfaces,chemically,adsorbing,amino,containing,dramatic,decrease,leak,current,MV,substantial,increase,were,achieved,result,remarkable,discharge,density,Moreover,suffering,breakdown,could,restored,original,value,This,study,demonstrates,rational,design,fabricating,greatly,enhanced
AB值：
0.537363
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