Enhanced Energy Storage and Suppressed Dielectric Loss in Oxide Core-Shell-Polyolefin Nanocomposites by Moderating Internal Surface Area and Increasing Shell Thickness

被引：133

作者：

Fredin, Lisa A. ^{[1
]}

Li, Zhong ^{[1
]}

Ratner, Mark A. ^{[1
]}

Lanagan, Michael T. ^{[2
]}

Marks, Tobin J. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Penn State Univ, Ctr Dielect Studies, Mat Res Inst, University Pk, PA 16802 USA

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 44期

关键词：

OLEFIN POLYMERIZATION; ELECTROCHEMICAL CHARACTERISTICS; FERROELECTRIC POLYMERS; CHEMISORPTION PATHWAYS; METALLOCENE CATALYSTS; HIGH-PERMITTIVITY; METAL-OXIDES; DENSITY; NANOPARTICLES; FABRICATION;

D O I：

10.1002/adma.201202183

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dielectric loss in metal oxide core/Al2O3 shell polypropylene nanocomposites scales with the particle surface area. By moderating the interfacial surface area between the phases and using increasing shell thicknesses, dielectric loss is significantly reduced, and thus the energy stored within, and recoverable from, capacitors fabricated from these materials is significantly increased, to as high as 2.05 J/cm(3).

引用

页码：5946 / +

页数：9

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